000 00606nam a2200205Ia 4500
008 160808s1973 xx 000 0 eng d
020 _a0070526257
041 _aeng
084 _aan73,N
_2CC
245 _aMc Graw - hill year book of science and technology /
260 _aNew York :
_bMcGraw-Hill,
_c1973.
260 _aNew York :
_bMcGraw-Hill,
_c1999.
260 _aNew York :
_bMcGraw-Hill,
_c1978.
260 _aNew York :
_bMcGraw-Hill,
_c1975.
260 _aNew York :
_bMcGraw-Hill,
_c1974.
653 _aMc Graw - Hill
653 _aNatural Sciences
653 _aYear Book
999 _c154587
_d154587