Principles And Practices Of Modern Coal Mining
Singh, R D
Principles And Practices Of Modern Coal Mining / by R D Singh - New Delhi New Age International Publishers 1998 - xxiv,696p
81-224-0974-1
622.334 / SIN/P
Principles And Practices Of Modern Coal Mining / by R D Singh - New Delhi New Age International Publishers 1998 - xxiv,696p
81-224-0974-1
622.334 / SIN/P