000
00227pam a2200109a 44500
082
_a
531.33
_b
EW5E
100
_a
Ewing
245
1
_a
ELASTIC WAVES IN LAYERED MEDIA
260
_a
_b
_c
1957
964
_g
CIRC
997
_a
50321 C
999
_c
448764
_d
448764