APA ציטוט

Cowan, F. M., Flegg, P. J., & Brettle, R. P. (1989). Heterosexually acquired HIV infection.

Citação norma Chicago

Cowan, Frances M., Peter J. Flegg, and Raymond P. Brettle. Heterosexually Acquired HIV Infection. 1989.

ציטוט MLA

Cowan, Frances M., Peter J. Flegg, and Raymond P. Brettle. Heterosexually Acquired HIV Infection. 1989.