Dyfyniad APA

(1971). Vol. 48, № 8; Journal of the American Oil Chemical Society. 1971.

Dyfyniad Arddull Chicago

Vol. 48, № 8; Journal of the American Oil Chemical Society. 1971, 1971.

Dyfyniad MLA

Vol. 48, № 8; Journal of the American Oil Chemical Society. 1971, 1971.

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