Dyfyniad APA

National Research Council (U.S.). Committee on High-School Biology Education & Rosen, W. G. (1989). High-school biology: Today and tomorrow. National Academy Press.

Dyfyniad Arddull Chicago

National Research Council (U.S.). Committee on High-School Biology Education and Walter G. Rosen. High-school Biology: Today and Tomorrow. Washington, D.C.: National Academy Press, 1989.

Dyfyniad MLA

National Research Council (U.S.). Committee on High-School Biology Education and Walter G. Rosen. High-school Biology: Today and Tomorrow. National Academy Press, 1989.

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