Do a search for articles on vaccination and autism. Find 3 quality articles... use APA 6 to build a bibliography of the 3 articles.
Below are the articles.
1. McCormick MC. Immunization safety review: vaccines and autism. Institute of Medicine; Washington, DC: 2004
2. Nelson KB, Bauman ML. Thimerosal and autism? Pediatrics. 2003;111:674-9
3. Thompson WW, Price C, Goodson B, et al. Early thimerosal exposure and neuropsychological outcomes at 7 to 10 years. N Engl J Med. 2007;357:1281-92
4. Baker JP. Mercury, vaccines, and autism: one controversy, three histories. Am J Public Health. 2008;98:244-53.