TY  - BOOK
AU  - Betz, Frederick , 1915-
TI  - Environmental geology
SN  - 0470071702
AV  - TA705.E64 
PB  - Dowden, Hutchinson & Ross
KW  - Engineering geology
KW  - Environmental protection
KW  - Man -- Influence of environment
KW  - Man -- Influence on nature
KW  - TA
N1  - Includes bibliographies and indexes
ER  -