V.K.Gupta. (2001). Wealth of India: A dictionary of Indian raw materials & industrial products. CSIR.
Dyfyniad Arddull ChicagoV.K.Gupta. Wealth of India: A Dictionary of Indian Raw Materials & Industrial Products. New Delhi: CSIR, 2001.
Dyfyniad MLAV.K.Gupta. Wealth of India: A Dictionary of Indian Raw Materials & Industrial Products. CSIR, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.