Dyfyniad APA

Cooper,J.I. (1993). Virus diseases of trees and shrubs (2nd ed.). Chapman and Hall.

Dyfyniad Arddull Chicago

Cooper,J.I. Virus Diseases of Trees and Shrubs. 2nd ed. London: Chapman and Hall, 1993.

Dyfyniad MLA

Cooper,J.I. Virus Diseases of Trees and Shrubs. 2nd ed. Chapman and Hall, 1993.

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