000
00227nam a2200097 4500
999
_c
336435
_d
336435
082
_a
551.7
_b
SCH.S
100
_a
Schoch,Robert M
245
_a
Stratigraphy
_c
Schoch,Robert M
260
_a
Newyork
_c
1989
_b
Van Nostrand
942
_c
BK