000
00275pam a2200109a 44500
082
_a
531.33
_b
EW5E COP.3
100
_a
Ewing, Maurice W.
245
1
_a
ELASTIC WAVES IN LAYERED MEDIA
260
_a
_b
Mcgraw-Hill Book Company, Inc.
_c
1957
964
_g
CIRC
997
_a
74148 C
999
_c
412820
_d
412820