Dyfyniad APA

(1998). Guidelines for controlling and monitoring the tobacco epidemic.

Dyfyniad Arddull Chicago

Guidelines for Controlling and Monitoring the Tobacco Epidemic. 1998.

Dyfyniad MLA

Guidelines for Controlling and Monitoring the Tobacco Epidemic. 1998.

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