Dyfyniad APA
FRIEDMAN, S. R., LIPTON, D. S., & Stimmel, B. (1991). Cocaine, AIDS, and intravenous drug use. Harrington Park Press.
Dyfyniad Arddull Chicago
FRIEDMAN, Samuel R., Douglas S. LIPTON, and Barry Stimmel. Cocaine, AIDS, and Intravenous Drug Use. New York ; London ; Sidney: Harrington Park Press, 1991.
Dyfyniad MLA
FRIEDMAN, Samuel R., et al. Cocaine, AIDS, and Intravenous Drug Use. Harrington Park Press, 1991.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.