Dyfyniad APA

(2000). Drug facts & figures: National anti-drug policy. Washington, D C: United States Information Agency.

Dyfyniad Arddull Chicago

Drug Facts & Figures: National Anti-drug Policy. Washington, D C: United States Information Agency, 2000.

Dyfyniad MLA

Drug Facts & Figures: National Anti-drug Policy. Washington, D C: United States Information Agency, 2000.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.