APA način citiranja

Dhalla, S., Poole, G., Singer, J., Patrick, D. M., & Kerr, T. (2012). Cognitive factors and willingness to participate in an HIV vaccine trial among HIV-positive injection drug users.

Čikaški stil citiranja

Dhalla, Shayesta, Gary Poole, Joel Singer, David M. Patrick, i Thomas Kerr. Cognitive Factors and Willingness to Participate in an HIV Vaccine Trial Among HIV-positive Injection Drug Users. 2012.

MLA način citiranja

Dhalla, Shayesta, et al. Cognitive Factors and Willingness to Participate in an HIV Vaccine Trial Among HIV-positive Injection Drug Users. 2012.