000 00278cam a22000977a 4500
008 180718b1970 xxu||||| |||| 00| 0 eng d
082 _aYAx73 Un3r
245 _aScience and technology: tools for progress
260 _aWashington
_bGovernment Printing Office
_c1970
300 _a48+p.
999 _c499352
_d499352