Mineral economics: A text book for university students
Sinha, R K
Mineral economics: A text book for university students - New Delhi: Oxford & IBH Publishing Co, 1970 - xvi, 317p.
Economics
Crude petroleum
553.1 / L0
Mineral economics: A text book for university students - New Delhi: Oxford & IBH Publishing Co, 1970 - xvi, 317p.
Economics
Crude petroleum
553.1 / L0