Dyfyniad APA

(1959). Science: Nos. American association for the advancement of science.

Dyfyniad Arddull Chicago

Science: Nos. Lancaster: American association for the advancement of science, 1959.

Dyfyniad MLA

Science: Nos. American association for the advancement of science, 1959.

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