Dyfyniad APA

Mattson, W. J. (1992). Role of arthropods in forest ecosystems.

Dyfyniad Arddull Chicago

Mattson, W J. Role of Arthropods in Forest Ecosystems. Springer-Verlag, New York, 1992.

Dyfyniad MLA

Mattson, W J. Role of Arthropods in Forest Ecosystems. 1992.

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