APA Citatie

Uusküla, A., Des Jarlais, D. C., Kals, M., Rüütel, K., Abel-Ollo, K., Talu, A., & Sobolev, I. (2011). Expanded syringe exchange programs and reduced HIV infection among new injection drug users in Tallinn, Estonia. BioMed Central.

Chicago Style citaat

Uusküla, Anneli, Don C. Des Jarlais, Mart Kals, Kristi Rüütel, Katri Abel-Ollo, Ave Talu, en Igor Sobolev. Expanded Syringe Exchange Programs and Reduced HIV Infection Among New Injection Drug Users in Tallinn, Estonia. BioMed Central, 2011.

MLA citatie

Uusküla, Anneli, et al. Expanded Syringe Exchange Programs and Reduced HIV Infection Among New Injection Drug Users in Tallinn, Estonia. BioMed Central, 2011.