Stillwaggon, Eileen. "Individual Bias in Methodology." AIDS and the Ecology of Poverty. : Oxford University Press, 2005-11-24. Oxford Scholarship Online. 2006-02-01. Date Accessed 21 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/0195169271.001.0001/acprof-9780195169270-chapter-8>.
Stillwaggon, E.(2005-11-24). Individual Bias in Methodology. In AIDS and the Ecology of Poverty. : Oxford University Press. Retrieved 21 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/0195169271.001.0001/acprof-9780195169270-chapter-8.
Stillwaggon, Eileen. "Individual Bias in Methodology." In AIDS and the Ecology of Poverty. : Oxford University Press, 2005-11-24. http://www.oxfordscholarship.com/view/10.1093/0195169271.001.0001/acprof-9780195169270-chapter-8.
Stillwaggon E. Individual Bias in Methodology. In: Stillwaggon E. AIDS and the Ecology of Poverty. Oxford University Press; 2005. http://www.oxfordscholarship.com/view/10.1093/0195169271.001.0001/acprof-9780195169270-chapter-8. Accessed May 21, 2013.