00656nam a2200181Ia 4500082001500000100002900015245010100044260002400145300000900169500000500178690000600183700003100189700003000220952018000250964001700430921001000447999001700457  aSA.6bR215  aRao, J. N. K. and Others  aVariance estimation with one unit per stratumbcBy J. N. K. Rao, H. O. Hartley and Grace Kiefer  aCalcuttabISIc1969  a25p.  a  a   aHartley, H. O. ; jt. auth.  aKiefer, Grace ; jt. auth.  01104071aISIbISId1998-10-13l0oSA.6 R215pDP6401r2019-02-14 00:00:00w2019-02-14yBKzPublications given out to Sree Saraswathi Thyagaraja College, Pollachi, Tamil Nadu  abcdefg  a17180  c17180d17180