TY  - BOOK
AU  - Mather,Kirtley F.
TI  - Source book in geology, 1900-1950
U1  - 550 MAT 
PY  - 1967///
CY  - Cambridge
PB  - Harvard University Press
KW  - Geology
N1  - Sequel to a source book in geology published in 1939, reprinted in 1964
ER  -