Dyfyniad APA

Harrar, E. S., & Harrar, J. G. (1962). Guide to southern trees (2a. ed.). Dover.

Dyfyniad Arddull Chicago

Harrar, Ellwood Scott, and Jacob George Harrar. Guide to Southern Trees. 2a. ed. Nueva York: Dover, 1962.

Dyfyniad MLA

Harrar, Ellwood Scott, and Jacob George Harrar. Guide to Southern Trees. 2a. ed. Dover, 1962.

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