TY  - BOOK
AU  - Hussey, Russell C.
TI  - Historical geology : : the geologic history of North America / 
AV  - QE71 .H8 1947
U1  - 550 
PY  - 1947///
CY  - New York : 
PB  - McGraw-Hill Book Co.
KW  - Geology
KW  - North America
KW  - Paleontology
KW  - Geology, Stratigraphic
N1  - Includes Index.; Includes "Reading references."
ER  -