Dyfyniad APA

David D Reed. (1977). Resource assessment in forested landscapes. John Wiley & sons, INC.

Dyfyniad Arddull Chicago

David D Reed. Resource Assessment in Forested Landscapes. New York: John Wiley & sons, INC, 1977.

Dyfyniad MLA

David D Reed. Resource Assessment in Forested Landscapes. John Wiley & sons, INC, 1977.

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