000 00304nam a2200133Ia 4500
100 _aIndian Statistical Institute
245 _aThe multifact concept of observational procedures
260 _aDelhi
_cThe Auth
300 _aV.P
490 _a
690 _a
964 _a
_b
_c
_d
_e
_f
_g
921 _a26620
999 _c26620
_d26620