Sinha, P. C. (1998). International encyclopaedia of sustainable development. Anmol Publications.
Chicago (17e ed.) BronvermeldingSinha, P. C. International Encyclopaedia of Sustainable Development. New Delhi: Anmol Publications, 1998.
MLA (8e ed.) BronvermeldingSinha, P. C. International Encyclopaedia of Sustainable Development. Anmol Publications, 1998.
Let op: Deze citaties zijn niet altijd 100% accuraat.