%0 Journal Article %T A Two-Parameter Ratio-Product-Ratio Estimator Using Auxiliary Information %A Peter S. Chami %A Bernd Sing %A Doneal Thomas %J ISRN Probability and Statistics %D 2012 %I Hindawi Publishing Corporation %R 10.5402/2012/103860 %U http://dx.doi.org/10.5402/2012/103860