TY - BOOK AU - Marshall J F AU - Polgar S eds. TI - Culture, natality and family planning T2 - (Carolina Population Center monographs; no. 21) PY - 1976/// CY - Chapel Hill, N.C. PB - Carolina Population Center KW - Culture KW - Family KW - Family Planning KW - Fertility KW - Immunology KW - Research-methods ER -