TY  - BOOK
AU  - Kummel, Bernhard,
TI  - History of the earth: an introduction to historical geology
U1  - 551 W.E.F 1961 A084 Or. 
PY  - 1961///]
CY  - San Francisco
PB  - W. H. Freeman
KW  - Geology, Stratigraphic
KW  - Paleontology
ER  -