APA (7th ed.) Citation

C, B., K, M., A, K., M, K., M, S., SA, S., . . . Strathdee, S. A. (2010). Time to act: A call for comprehensive responses to HIV in people who use drugs. Lancet, 376(9740), 551. https://doi.org/10.1016/S0140-6736(10)60928-2

Chicago Style (17th ed.) Citation

C, Beyrer, et al. "Time to Act: A Call for Comprehensive Responses to HIV in People Who Use Drugs." Lancet 376, no. 9740 (2010): 551. https://doi.org/10.1016/S0140-6736(10)60928-2.

MLA (9th ed.) Citation

C, Beyrer, et al. "Time to Act: A Call for Comprehensive Responses to HIV in People Who Use Drugs." Lancet, vol. 376, no. 9740, 2010, p. 551, https://doi.org/10.1016/S0140-6736(10)60928-2.