International mineral economics:  mineral exploration, mine ventilation, mineral markets, international mineral policies.  By W.R. Gocht, H. Zantop and R.G. Eggert
Contributors: Zantop, H.; Eggert, R.G.
Publisher: Springer-Verlag
Place of publication: Berlin
Language: eng
Number of pages: 271
Subjects: Mineral economics
Notes: 11