A simplified client record system for family planning programs : rapid feedback for family planning improvement / Harald A. Pedersen, Henry G. Elkins, Jeanne Cairns Sinquefield, Pedersen, Harald A. Elkins, Henry G. Sinquefield, Jeanne Cairns Sociology 301.426 CHF Chicago : Community and family study center, c 1972. c 1972. 1972 Text no 10, iv, 85 p. : eng