Dyfyniad APA

(1994). Timber trees: Major commercial timbers. Wageningen, Netherlands: Pudoc Scientific Publishers.

Dyfyniad Arddull Chicago

Timber Trees: Major Commercial Timbers. Wageningen, Netherlands: Pudoc Scientific Publishers, 1994.

Dyfyniad MLA

Timber Trees: Major Commercial Timbers. Wageningen, Netherlands: Pudoc Scientific Publishers, 1994.

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