TY  - BOOK
AU  - Dunbar,Carl O.
AU  - Dunbar,Carl O.
TI  - Principles of stratigraphy
U1  - 551.7 
PY  - 1957///
CY  - New York
PB  - John Wiley and Sons
KW  - Physical and dynamic geology
KW  - Stratigraphy
KW  - Principles of stratigraphy
ER  -