Dyfyniad APA

Cunningham, W. P., & Woodsworth, B. Environmental science: A global concern (5th ed.). Saigo.

Dyfyniad Arddull Chicago

Cunningham, William P., and Barbara Woodsworth. Environmental Science: A Global Concern. 5th ed. Saigo.

Dyfyniad MLA

Cunningham, William P., and Barbara Woodsworth. Environmental Science: A Global Concern. 5th ed. Saigo.

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