APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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