Cita APA

Hoffman, R. E., Wolf, F. C., Wood, R. C., Raevsky, C., & Vernon, T. M. (1990). Confidential versus anonymous human immunodeficiency virus antibody testing.

Citación estilo Chicago

Hoffman, R. E., F. C. Wolf, R. C. Wood, C. Raevsky, y T. M. Vernon. Confidential Versus Anonymous Human Immunodeficiency Virus Antibody Testing. 1990.

Cita MLA

Hoffman, R. E., et al. Confidential Versus Anonymous Human Immunodeficiency Virus Antibody Testing. 1990.