00000nam 2200000 4500 INLIS000000000001498 20230731095310 0010-0723000075 ta 230731################e##########0#eng## - 612.6 612.6 CAL o Caldwell J. C. Occasional Papers : The Wolrd Fertility Survey : Problems and Possibilites / Caldwell J. C. ; Williams Ken ( Editor ) ; Kendall M.G. ( Projects Drirector) - Dapartement of Demography Australian National University : Caldwell J.C, - 26 hlm : ilust ; 24cm - assumes that the survey will consist of a singke round to be held in the mid -1970s Thus, data over time must be dependect on memory and on a single set of retrospective response. Survey Kesuburan