TY - BOOK AU - Fellegi, Ivan P. ED - International Program of Laboratories for Population Statistics. TI - Some aspects of the survey design for the Moroccan dual record exper imental study U1 - 301.32964 FEL PY - 1974/// CY - Chapel Hill PB - International Program of Laboratories for Populatio n Statistics KW - Dual record systems KW - Morocco KW - Population N1 - Bibliography: (p. 25) ER -