000 00258cam a22000977a 4500
008 180718b1964 xxu||||| |||| 00| 0 eng d
082 _aI537x73 Un3g
245 _aSource data equipment
260 _aWashington
_bGovernment Printing Office
_c1964
300 _av.p.
999 _c491560
_d491560