Sinha, P. C. (1998). International encyclopedia of sustainable development. Anmol Publications Pvt. Ltd.
Citazione stile Chigago Style (17a edizione)Sinha, P. C. International Encyclopedia of Sustainable Development. India: Anmol Publications Pvt. Ltd, 1998.
Citatione MLA (8a ed.)Sinha, P. C. International Encyclopedia of Sustainable Development. Anmol Publications Pvt. Ltd, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.