Dyfyniad APA

Campbell, N. A. (1994). Biology: Concepts & connections. Menlo Park, Calif: Benjamin Cummings.

Dyfyniad Arddull Chicago

Campbell, Neil A. Biology: Concepts & Connections. Menlo Park, Calif: Benjamin Cummings, 1994.

Dyfyniad MLA

Campbell, Neil A. Biology: Concepts & Connections. Menlo Park, Calif: Benjamin Cummings, 1994.

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