000 00299nam a22000857a 4500
008 240524s1971 us ||||| |||| 00| 0 eng d
245 _aScience year :
_bthe World book science annual : 1972.
264 _aChicago :
_bField Enterprises Educational Corp.,
_c1971.
653 _aმეცნიერება
999 _c754323
_d754321