TY  - GEN
AU  - Vorobjev,B.M
ED  - Symposium nacional del carbón, 1
TI  - Coal mine planning under similar peruvian conditions
KW  - Mine
KW  - Charbon
KW  - Exploitation minière
KW  - Pérou
N1  - <Donation ORSTOM>; bibliogr. p. 13
ER  -