TY  - BOOK
AU  - Clark,Thomas Henry
AU  - Stearn,Colin William
TI  - Geological evolution of North America
AV  - QE7 .C55 1968
U1  - 551.7/0097 
PY  - 1968///]
CY  - New York
PB  - Ronald Press
KW  - Geology
KW  - North America
KW  - Local
KW  - Geology, Stratigraphic
KW  - Paleontology
N1  - 921004; Includes bibliographical references
ER  -