Dyfyniad APA

Given, D. R. (1994). Principles and practice of plant conservation. Timber Press.

Dyfyniad Arddull Chicago

Given, David R. Principles and Practice of Plant Conservation. Portland: Timber Press, 1994.

Dyfyniad MLA

Given, David R. Principles and Practice of Plant Conservation. Timber Press, 1994.

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