Dyfyniad APA

PENTAGON PRESS. (2003). THE AMAZING FACTS SCIENCE. PENTAGON PRESS.

Dyfyniad Arddull Chicago

PENTAGON PRESS. THE AMAZING FACTS SCIENCE. NEW DELHI: PENTAGON PRESS, 2003.

Dyfyniad MLA

PENTAGON PRESS. THE AMAZING FACTS SCIENCE. PENTAGON PRESS, 2003.

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