Dyfyniad APA

Rogers, P. P., Boyd, J. A., & Jalal, K. F. (2008). An introduction to sustainable development. London ; Sterling, VA: Earthscan.

Dyfyniad Arddull Chicago

Rogers, Peter P., John A. Boyd, và Kazi F. Jalal. An Introduction to Sustainable Development. London ; Sterling, VA: Earthscan, 2008.

Dyfyniad MLA

Rogers, Peter P., John A. Boyd, và Kazi F. Jalal. An Introduction to Sustainable Development. London ; Sterling, VA: Earthscan, 2008.

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