HJ Schlegel. (2004). Encyclopedic dictionary of plant breeding and related subjects. Viva books private limited.
Dyfyniad Arddull ChicagoHJ Schlegel. Encyclopedic Dictionary of Plant Breeding and Related Subjects. New Delhi: Viva books private limited, 2004.
Dyfyniad MLAHJ Schlegel. Encyclopedic Dictionary of Plant Breeding and Related Subjects. Viva books private limited, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.