Schaeffer,Jurgen Schulz. (1980). Cytogenetics: Plants,Animals, Humans. Springer Verlag.
Dyfyniad Arddull ChicagoSchaeffer,Jurgen Schulz. Cytogenetics: Plants,Animals, Humans. New York: Springer Verlag, 1980.
Dyfyniad MLASchaeffer,Jurgen Schulz. Cytogenetics: Plants,Animals, Humans. Springer Verlag, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.