Sinha, P. C. (2006). Guidelines for human environment and sustainable development. SBS Publishers & Distributors.
Dyfyniad Arddull ChicagoSinha, Prabhas Chandra. Guidelines for Human Environment and Sustainable Development. New Delhi: SBS Publishers & Distributors, 2006.
Dyfyniad MLASinha, Prabhas Chandra. Guidelines for Human Environment and Sustainable Development. SBS Publishers & Distributors, 2006.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.