Dyfyniad APA

Enger, E. D. (2006). Environmental science: A study of interrelationships. Boston: McGrawHill Higher Education.

Dyfyniad Arddull Chicago

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston: McGrawHill Higher Education, 2006.

Dyfyniad MLA

Enger, Eldon D. Environmental Science: A Study of Interrelationships. Boston: McGrawHill Higher Education, 2006.

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