Dyfyniad APA

Kalra,G D. (1983). Mineral development in Bihar 1979-80 to 1988-89. NCAER.

Dyfyniad Arddull Chicago

Kalra,G D. Mineral Development in Bihar 1979-80 to 1988-89. New Delhi: NCAER, 1983.

Dyfyniad MLA

Kalra,G D. Mineral Development in Bihar 1979-80 to 1988-89. NCAER, 1983.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.