Online Public Access Catalogue (OPAC)Library,Documentation and Information Science Division
“A research journal serves that narrow
borderland which separates the known from the unknown”
-P.C.Mahalanobis
001.4/33 Groves, Robert M. Survey errors and survey costs / Robert M. Groves. - New York : Wiley, c1989. xxi, 590 p. : ill. ; 24 cm. 0471611719 * Household surveys. Social surveys.