TY  - BOOK
AU  - Merrill, Robert H. (Ed.)
TI  - Underground mining methods handbook. Secc. 7: Foundations for design
U1  - 622.2 
PY  - 1982///
CY  - New YorkU.S.A.
PB  - Society of Mining Engineers
KW  - Ingenieria de minas
KW  - Manuales
N1  - Incluye: Indice, bibliografia; BIBLIOTECA: UACH-FING
ER  -