000 00314nam a2200133Ia 4500
654 _aGEN
100 _aThring.M.W. & Laithwhite.E.R.
250 _a1st Ed.
245 _aHow To Invent.(1977).
260 _bMcmillian Publication Company
_c1978
082 _bTHR
_a24E-986
300 _a173p.
999 _c14498
_d14498
041 _aeng
655 _a24G
546 _aText in English
300 _c22 cm.