TY  - BOOK
AU  - Blatt, Harvey 
TI  - Laboratory exercises in environmental geology
SN  - 0-697-28288-0
U1  - Ref. 550 B61 
PY  - 1998///
CY  - Boston
PB  - McGraw- Hill
KW  - Geology
KW  - Laboratory manual
KW  - Earth
KW  - Mineralogy
KW  - Volcanoes
KW  - Coal mines
KW  - Earthquakes
KW  - Pollution
ER  -