Cassel, Claes -Magnus Sarndal, Carl -Erik & Wretman, Jan Hakan Foundations of inference in survey Sampling x - x - New York, London Wiley 1977 - xi(iii)192p Includes ISBN: 0471025631 Subjects--Topical Terms: Sampling (Statistics) Estimation theory Dewey Class. No.: 519.52/C344f