000 00283nam a2200121Ia 4500
008 160710s1962 xx 000 0 und d
082 _a620.1 WAL
100 _aWALKER ,J.D.
245 _aENGINEERING SCIENCE
260 _bENGLISH UNIVERSITY
_c1962
300 _a197
942 _2ddc
_cB
999 _c37863
_d37863