APA način citiranja

Keele, B. F., & Estes, J. D. (2011). Barriers to mucosal transmission of immunodeficiency viruses. American Society of Hematology.

Čikaški stil citiranja

Keele, Brandon F., i Jacob D. Estes. Barriers to Mucosal Transmission of Immunodeficiency Viruses. American Society of Hematology, 2011.

MLA način citiranja

Keele, Brandon F., i Jacob D. Estes. Barriers to Mucosal Transmission of Immunodeficiency Viruses. American Society of Hematology, 2011.