Dyfyniad APA

Lieb, C. W. (1957). Don't let smoking kill you. Bonus Books.

Dyfyniad Arddull Chicago

Lieb, Clarence W. Don't Let Smoking Kill You. New York: Bonus Books, 1957.

Dyfyniad MLA

Lieb, Clarence W. Don't Let Smoking Kill You. Bonus Books, 1957.

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