TY  - BOOK
AU  - Leet L Don Ed.
AU  -  Leet Florence J Ed.
TI  - World of geology
T2  - McGraw-Hill Paperbacks In Science,Mathematics And Engineering
U1  - H, K1 
PY  - 1961///
CY  - New York
PB  - McGraw-Hill U S A      
KW  - Geology
ER  -