Cita APA (7a ed.)

Edited by ,Prof. Dhar , B. B. (2000). Mining Challenges of the 21st century. APH.

Cita Chicago Style (17a ed.)

Edited by ,Prof. Dhar , B. B. Mining Challenges of the 21st Century. New Delhi: APH, 2000.

Cita MLA (9a ed.)

Edited by ,Prof. Dhar , B. B. Mining Challenges of the 21st Century. APH, 2000.