TY  - BOOK
AU  - Ojakagas,Richard
TI  - Schaum's outline of theory and problems of introductory geology
SN  - 0070477043
PY  - 1991///
CY  - New York
PB  - McGraw-Hill
KW  - Geology
KW  - Outlines, syllabi, etc
KW  - Problems, exercises, etc
ER  -