Karna, M. N. (1981). Studies in Bihar's economy and society. Concept.
Dyfyniad Arddull ChicagoKarna, M. N. Studies in Bihar's Economy and Society. New Delhi (H-13 Bali Nagar, New Delhi--110015): Concept, 1981.
Dyfyniad MLAKarna, M. N. Studies in Bihar's Economy and Society. Concept, 1981.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.