000 00399nam a2200193 4500
020 _a
_c
037 _c
082 _a500 050 LAP
100 _a
245 _aYEAR BOOK OF SCIENCE AND TECHNOLOGY
_hEnglish
250 _a
260 _aNEW YORK
_bMc GRAW-HILL BOOK COMPANY,INC
_c1970
300 _a477
_fHB
500 _a
590 _d
630 _a
650 _aYEAR BOOK
942 _cREF
999 _c265059
_d265059