Dyfyniad APA

Faul, H. (1966). Ages of rocks, planets, and stars. McGraw-Hill Book Co.

Dyfyniad Arddull Chicago

Faul, Henry. Ages of Rocks, Planets, and Stars. New York: McGraw-Hill Book Co, 1966.

Dyfyniad MLA

Faul, Henry. Ages of Rocks, Planets, and Stars. McGraw-Hill Book Co, 1966.

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