TY  - BOOK
AU  - Mather Kirtley F
AU  -  Mason Shirley L
TI  - Source book in geology, 1400-1900
T2  - Source Books In The History Of The Sciences
U1  - H.N00<--1, L0 
PY  - 1970///
CY  - Cambridge
PB  - Harvard University Press        
KW  - Geology
ER  -