Dyfyniad APA

Neil A Campbell. (1999). Biology: Concepts and connections. Menlo Park, California: Addison Wesley Longman.

Dyfyniad Arddull Chicago

Neil A Campbell. Biology: Concepts and Connections. Menlo Park, California: Addison Wesley Longman, 1999.

Dyfyniad MLA

Neil A Campbell. Biology: Concepts and Connections. Menlo Park, California: Addison Wesley Longman, 1999.

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