TY  - BOOK
TI  - Survey of metallic and non metallic minerals, phase 2: republic of Ecuador 
T2  - Technical report, 15
PY  - 1972///
CY  - Nueva York
PB  - United nations development programme
KW  - Géologie
KW  - Géochimie
KW  - Minéralisation
KW  - Equateur
KW  - Cañar
N1  - bibliogr. p. 23, 2
ER  -