000
00248nam a2200097 4500
999
_c
336052
_d
336052
082
_a
622.1
_b
RON.P
100
_a
Ronald Seeger, C.
245
_a
Problems for Exploration Geophysics
_c
Ronald Seeger, C.
260
_a
Washington
_c
1979
_b
UPA
942
_c
BK