000 00275pam a2200109a 44500
082 _a531.33
_bEW5E COP.3
100 _aEwing, Maurice W.
245 1 _aELASTIC WAVES IN LAYERED MEDIA
260 _a
_bMcgraw-Hill Book Company, Inc.
_c1957
964 _gCIRC
997 _a74148 C
999 _c412820
_d412820