Rogers, P. P., & Jalal, K. F. a. B. (2006). Introduction to sustainable development. Prentice Hall of India.
Dyfyniad Arddull ChicagoRogers, Peter P., and Kazi F. and Boyd Jalal. Introduction to Sustainable Development. New Delhi: Prentice Hall of India, 2006.
Dyfyniad MLARogers, Peter P., and Kazi F. and Boyd Jalal. Introduction to Sustainable Development. Prentice Hall of India, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.