TY  - BOOK
AU  - Watkins,Joel S.
AU  - Bottino,Michael L.
AU  - Morisawa,Marie
TI  - Our geological environment
SN  - 0721691331
PY  - 1975///
CY  - Philadelphia
PB  - W. B. Saunders
KW  - Geology
KW  - Environmental protection
N1  - p. 501-508
ER  -