Dyfyniad APA

Nair, P. (1990). Principles of environmental biology. Himalaya Pub House.

Dyfyniad Arddull Chicago

Nair, P. Principles of Environmental Biology. Delhi: Himalaya Pub House, 1990.

Dyfyniad MLA

Nair, P. Principles of Environmental Biology. Himalaya Pub House, 1990.

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