Dyfyniad APA

(1962). Science: Nos 3497-3509. American association for the advancement of science.

Dyfyniad Arddull Chicago

Science: Nos 3497-3509. Lancaster: American association for the advancement of science, 1962.

Dyfyniad MLA

Science: Nos 3497-3509. American association for the advancement of science, 1962.

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