000 00280nam a2200121Ia 4500
008 220709b1965 xxu||||| |||| 00| 0 eng d
082 _a515.5
_bL52G
100 _aLevens, A.S.
245 _aGraphical methods in research
260 _aNew York
_bJohn Wiley & Sons
_c1965
300 _avi,211p.
942 _cBooks
906 _a111693
981 _aNew York: John Wiley & Sons, 1965.
982 _avi,211p.
983 _aGraphical methods in research
999 _c105622
_d105622