TY  - BOOK
AU  - (Brown,Walter R.)
AU  - (Anderson,Norman D.)
TI  - Earth science : : A search for understanding / 
SN  - 039743748X (hb)
PY  - 1977///
CY  - Philadelphia : 
PB  - J. B. Lippincott Co., 
N1  - Includes index
ER  -