Dyfyniad APA

Davis, M. L., & Masten, S. J. (2004). Principles of environmental engineering and science. McGraw Hill.

Dyfyniad Arddull Chicago

Davis, Mackenzie L., and Susan J. Masten. Principles of Environmental Engineering and Science. Boston: McGraw Hill, 2004.

Dyfyniad MLA

Davis, Mackenzie L., and Susan J. Masten. Principles of Environmental Engineering and Science. McGraw Hill, 2004.

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