Dyfyniad APA

Stiles ,Walter. (1994). Principles of plant physiology. Discovery.

Dyfyniad Arddull Chicago

Stiles ,Walter. Principles of Plant Physiology. New Delhi: Discovery, 1994.

Dyfyniad MLA

Stiles ,Walter. Principles of Plant Physiology. Discovery, 1994.

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