APA

El-Bassel N., Gilbert L., Wu E., Witte S. S., Chang M., Hill J. & Remien R. H. (20111207). Couple-based HIV prevention for low-income drug users from New York City: a randomized controlled trial to reduce dual risks. : Journal of acquired immune deficiency syndromes (1999).

Chicago

El-Bassel Nabila, Gilbert Louisa, Wu Elwin, Witte Susan S, Chang Mingway, Hill Jennifer and Remien Robert H. 20111207. Couple-based HIV prevention for low-income drug users from New York City: a randomized controlled trial to reduce dual risks. : Journal of acquired immune deficiency syndromes (1999).

Harvard

El-Bassel N., Gilbert L., Wu E., Witte S. S., Chang M., Hill J. and Remien R. H. (20111207). Couple-based HIV prevention for low-income drug users from New York City: a randomized controlled trial to reduce dual risks. : Journal of acquired immune deficiency syndromes (1999).

MLA

El-Bassel Nabila, Gilbert Louisa, Wu Elwin, Witte Susan S, Chang Mingway, Hill Jennifer and Remien Robert H. Couple-based HIV prevention for low-income drug users from New York City: a randomized controlled trial to reduce dual risks. : Journal of acquired immune deficiency syndromes (1999). 20111207.