Dyfyniad APA

Blan chard, R. O., & Tattar, T. A. (1981). Field and laboratory guide to tree pathology. Academic Press.

Dyfyniad Arddull Chicago

Blan chard, R O., and T A. Tattar. Field and Laboratory Guide to Tree Pathology. New York: Academic Press, 1981.

Dyfyniad MLA

Blan chard, R O., and T A. Tattar. Field and Laboratory Guide to Tree Pathology. Academic Press, 1981.

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