TY  - BOOK
AU  - Stokes, William Lee.
AU  - Judson, Sheldon.
AU  - Picard, M. Dane.
TI  - Introduction to geology: : physical and historical
U1  - 551.7 
PY  - 1978///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - Geología
ER  -