State whatever information you have in your citation and reference list. You do NOT have to include retrieval dates or database information. Include retrieval dates for source material that may change over time (e.g., wikis).
Raimondo, J., & Cohen, E. (2003). Art safari: An adventure in looking, for children and adults. Museum of Modern Art, New York, NY. Retrieved from http://www.moma.org/interactives/artsafari/
IAN Research Findings: Regression. (2012). Retrieved July 14, 2012, from http://www.autismspeaks.org/news/news-item/ian-research-findings-regression
Cite in your text the first few words of the title and and use double quotation marks (“IAN Research Findings,” 2012).
(American Psychological Association, 2010, p. 172)