Dyfyniad APA

(2005).  Environmental biotechnology: Concepts and applications.  Wiley-VCH.

Dyfyniad Arddull Chicago

 Environmental Biotechnology: Concepts and Applications.  Wiley-VCH, 2005.

Dyfyniad MLA

 Environmental Biotechnology: Concepts and Applications.  Wiley-VCH, 2005.

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