Dyfyniad APA

Walker, R. (2007). UNDER THE MICROSCOPE HEART How the blood gets around the body. Grolier.

Dyfyniad Arddull Chicago

Walker, Richard. UNDER THE MICROSCOPE HEART How the Blood Gets Around the Body. Grolier, 2007.

Dyfyniad MLA

Walker, Richard. UNDER THE MICROSCOPE HEART How the Blood Gets Around the Body. Grolier, 2007.

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