Dyfyniad APA

Etherington, J. R. (1976). Environment and plant ecology. Wiley Eastern.

Dyfyniad Arddull Chicago

Etherington, John R. Environment and Plant Ecology. New Delhi: Wiley Eastern, 1976.

Dyfyniad MLA

Etherington, John R. Environment and Plant Ecology. Wiley Eastern, 1976.

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