Παραπομπή APA

(1998). International encyclopaedia of sustainable development: Vol.6. Anmol.

Παραπομπή Chicago Style

International Encyclopaedia of Sustainable Development: Vol.6. New Delhi: Anmol, 1998.

Παραπομπή MLA

International Encyclopaedia of Sustainable Development: Vol.6. Anmol, 1998.