000 00400nam a2200193 4500
020 _a
_c
037 _c
082 _a500 030 SCI
100 _a
245 _aENCYCLOPEDIA OF SCIENCE AND TECHNOLOGY
_hEnglish
250 _a
260 _aNEW YORK
_bMc GRAW-HILL BOOK COMPANY,INC
_c1960
300 _a579
_fHB
500 _a
590 _d
630 _a
650 _aSCIENCE
942 _cREF
999 _c263050
_d263050