Volpe, E. P. (1971). Human heredity and birth defects. Bobbs-Merrill.
Dyfyniad Arddull ChicagoVolpe, E. Peter. Human Heredity and Birth Defects. Indianapolis: Bobbs-Merrill, 1971.
Dyfyniad MLAVolpe, E. Peter. Human Heredity and Birth Defects. Bobbs-Merrill, 1971.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.