Dyfyniad APA

(1970). Ottawa Drug Authorities Look for Better “Pill”.

Dyfyniad Arddull Chicago

Ottawa Drug Authorities Look for Better “Pill”. 1970.

Dyfyniad MLA

Ottawa Drug Authorities Look for Better “Pill”. 1970.

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