TY  - BOOK
AU  - Levin,Harold L.
TI  - The earth through time
SN  - 0030583543
AV  - QE28.3 .L48 1983
U1  - 551.7 19
PY  - 1983///
CY  - Philadelphia
PB  - Saunders College Pub.
KW  - Historical geology
KW  - Textbooks
N1  - Includes bibliographies and index
ER  -