Carol Hardy McFadeen. (1994). Biology: An exploration of life. New York: W. W. Norton.
Dyfyniad Arddull ChicagoCarol Hardy McFadeen. Biology: An Exploration of Life. New York: W. W. Norton, 1994.
Dyfyniad MLACarol Hardy McFadeen. Biology: An Exploration of Life. New York: W. W. Norton, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.