000 00352nam a2200145Ia 4500
020 _a1-85561-014-0
082 _b12
_a000
100 _a"Holt Michael"
245 0 _aBelitha Information Library : Inventions
260 _bBelitha Press
_aLondon
_c1990
300 _a61
944 _cR
999 _c697053
_d697053