Dyfyniad APA

(1960). Science: Nos 3392-3417. American association for the advancement of science.

Dyfyniad Arddull Chicago

Science: Nos 3392-3417. Lancaster: American association for the advancement of science, 1960.

Dyfyniad MLA

Science: Nos 3392-3417. American association for the advancement of science, 1960.

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