Cita APA (7th ed.)

Mining, Geological, and Metallurgical Institute of India, United Nations. Economic and Social Commission for Asia and the Pacific, International Conference on Small-scale Mining (1991 : Calcutta, India), & Ghose, A. K. (1994). Small-scale mining: A global overview. A.A. Balkema.

Cita Chicago (17th ed.)

Mining, Geological, and Metallurgical Institute of India, United Nations. Economic and Social Commission for Asia and the Pacific, India) International Conference on Small-scale Mining (1991 : Calcutta, i Ajoy K. Ghose. Small-scale Mining: A Global Overview. The Netherlands: A.A. Balkema, 1994.

Cita MLA (9th ed.)

Mining, Geological, and Metallurgical Institute of India, et al. Small-scale Mining: A Global Overview. A.A. Balkema, 1994.