Παραπομπή APA

(1990). Risk factors for HIV seropositivity among people consulting for HIV antibody testing.

Παραπομπή Chicago Style

Risk Factors for HIV Seropositivity Among People Consulting for HIV Antibody Testing. 1990.

Παραπομπή MLA

Risk Factors for HIV Seropositivity Among People Consulting for HIV Antibody Testing. 1990.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.