TY  - BOOK
AU  - Singh, Umesh 
AU  - Guide: Katyar, N.P.
TI  - A Comparative Study of the Estimators Obtained From Weighted Means of Means per Unit Estimator and Ratio/Product Estimators 
U1  - 519.5 SIN-C 
PY  - 2007///
CY  - Jabalpur 
PB  - J.N.K.V.V.
KW  - Mathematics and Statics
ER  -