Dyfyniad APA

Boyce, A. (1997). Introduction to environmental technology. Van Nostrand Reinhold.

Dyfyniad Arddull Chicago

Boyce, Ann. Introduction to Environmental Technology. New York: Van Nostrand Reinhold, 1997.

Dyfyniad MLA

Boyce, Ann. Introduction to Environmental Technology. Van Nostrand Reinhold, 1997.

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