Sinha, P. C. E. (2006). Encyclopaedia of green business management Vol.4.
Chicago Edition CitationSinha, P C Ed. Encyclopaedia of Green Business Management Vol.4. Anmol Publications Pvt. Ltd., New Delhi, 2006.
Cita MLASinha, P C Ed. Encyclopaedia of Green Business Management Vol.4. 2006.
Atenció: Aquestes cites poden no estar 100% correctes.