000 00299nam a2200109Ia 4500
008 211217s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aTidswell W V
245 0 _aQuantilative Methods
260 _bUniversity Tutonal Press
_aLondon
_c1971
942 _c1
999 _c129049
_d129049