Dyfyniad APA

Kotpal, R. L. B. (1986). Concepts of ecology: Environmental and field biology.

Dyfyniad Arddull Chicago

Kotpal, R L; Bali. Concepts of Ecology: Environmental and Field Biology. Vishal Publications, Delhi, 1986.

Dyfyniad MLA

Kotpal, R L; Bali. Concepts of Ecology: Environmental and Field Biology. 1986.

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