Fellegi, Ivan P. Some aspects of the survey design for the Moroccan dual record exper imental study / Ivan P. Fellegi. - Chapel Hill : International Program of Laboratories for Populatio n Statistics, 1974. - 25 p. ; 25 cm. - Scientific report series ; no. 16 . Bibliography: (p. 25). Subjects--Topical Terms: Dual record systems. Subjects--Geographic Terms: Morocco-- Population. Dewey Class. No.: 301.32964 FEL