Dyfyniad APA

Bruce, D., & Schumacher, F. X. (1942). Forest mensuration (2nd ed.). McGraw-Hill.

Dyfyniad Arddull Chicago

Bruce, Donald, and Francis X. Schumacher. Forest Mensuration. 2nd ed. New York: McGraw-Hill, 1942.

Dyfyniad MLA

Bruce, Donald, and Francis X. Schumacher. Forest Mensuration. 2nd ed. McGraw-Hill, 1942.

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