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universala universal bibliography is one that includes everything that is issued published or processed in the field of knowledge from the
subject indexes and abstracting servicessearching of documents on a particular aspect of a subject can be a very time consuming effort if a large
reading listslarge sized subject bibliographies are important especially when they have a wide coverage but they are not enough as anyone wishing to
reference bibliographiesthe subject bibliographies which are mostly used for reference fall into this category these bibliographies are considered to
subjectthe subject bibliographies form the largest group of enumerative bibliographies it is defined as the one that deals with the materials
types of bibliographybibliographies are regarded as most important tools in libraries and documentation centers this is due to the fact that they
textualthe textual bibliographies are those bibliographies that help determine the effect of writing or the printing processes on the validity of the
historicalthis branch of bibliography deals with the history of making books it covers the history of printing writing materials and binding
systematic or enumerativethis kind of bibliography deals with the enumeration and classification of books it also takes care of the assembling of
analyticalan analytical bibliography deals with the study and detailed description of documents it examines the physical characteristics of documents
branches of bibliographya bibliography can be defined as a well-organised list of printed written or otherwise produced record of civilization
uses of bibliographybibliography has many other uses likeassists the users in locating documents of their interest aids in finding and verifying
functionsin the last two decades there have been tremendous developments in production of documents the volume of published literature has
bibliographythe bibliography is the chief class or form of reference and information access tools it is a systematically produced descriptive list
usethe indexes are the mainstay of i amp a periodicals without them consultation would be difficult and uncertain after making up your mind about a
services availablewith availability of many i amp a services the selection of suitable ones for a specific enquiry on hand would be the preliminary
coverage by kind of documentsi amp a periodicals are also devoted to specific kinds of documents such as periodical articles patents theses
coverage by geographical areathere are indexing and abstracting services with coverage limited to literature of a particular country various
current contentscurrent contents cc includes content pages of important journals in different fields to provide a quick current awareness service cc
social sciences citation indexa social sciences citation index ssci philadelphia isi 1973- it provides access to over 1700 leading social sciences
citation indexescitation indexes are unique from the point of view of technique followed they are based on citations made in current documents
comprehensive servicescentralised agencies in countries such as the former ussr france japan and china have been attempting comprehensive i amp a
presentationthe important consideration in the matter of presentation of entries in indexing and abstracting periodicals is of maintaining uniformity
scopei amp a periodicals attempt to cover current literature with as little time lag as possible because of time and effort involved in production
qualitiescoverage in order to fulfill the functions enumerated above see 422 the i amp a periodicals must as far as possible be comprehensive in