Dyfyniad APA
Fengel, D., & Wegener, G. (1989). Wood: Chemistry, ultrastructure, reactions. Walter de Gruyter.
Dyfyniad Arddull Chicago
Fengel, Dietrich, and Gerd Wegener. Wood: Chemistry, Ultrastructure, Reactions. Berlin ; New York: Walter de Gruyter, 1989.
Dyfyniad MLA
Fengel, Dietrich, and Gerd Wegener. Wood: Chemistry, Ultrastructure, Reactions. Walter de Gruyter, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.