000 00252pam a2200121a 44500
082 _a531
_bEL26M
100 _aElen,L.W.F.
245 1 _aMECHANICS
260 _a
_bCleaver-Hume Press
_c1950
700 _aMyers,R.
964 _gCIRC
997 _a1018 W
999 _c412104
_d412104