APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.