Dyfyniad APA

(1992). Plant breeding in the 1990s: Proceedings of the symposium on plant breeding in the 1990s; held at North Carolina State University Raleigh, N.C. March 1991. CAB.

Dyfyniad Arddull Chicago

Plant Breeding in the 1990s: Proceedings of the Symposium on Plant Breeding in the 1990s; Held at North Carolina State University Raleigh, N.C. March 1991. Wallingford: CAB, 1992.

Dyfyniad MLA

Plant Breeding in the 1990s: Proceedings of the Symposium on Plant Breeding in the 1990s; Held at North Carolina State University Raleigh, N.C. March 1991. CAB, 1992.

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