13/ c. Rodriguez and J. Cleland, "Socio-economic determinants of maritatfertility in trrenty countries: a oultivariate analysisn, ln world Fertility Surveyconfgrence 1980t Record of proceedinqs (London, rncernationalffirInstlt.ute' 1980) r studies cited in Standing, Labour force participation ..., p. Ig9and in Anker, Buvinic and youssef, pp. I7?_f761 . y/ Studies cited in Standing, L€bour force participatlon ..., pp. I47_I4g, f . 9*hri.r., TrtlfitV,".a "gr. (Balrimore andI'ondon'TheJohnsHopkinsunivffi,19?9)'s.cochrane,iEffects of educatj.on and urbanization on fertility,,, in Bulatao and Lee, op. c1t.,vol. 2.IZl united Nations. To be issued as a United ca tlon. E/ v. Hull, nFertility, eromen,s rrorkand economic classn, in Kupingky,op. cit. E/ iRevi.ew (E,zCONF.7614 and y/ uni ted studies cited inand appraisal of the !$orld population plan of ActionsCorr . 1) . Nations, Fertility and familv, (STIESA/SER .A/gg, , pp. 201_222, andstandtng, I€bour force partlcipation ..., pp. I7Z-I75. 18l working wonen in socialist countries, R. Anker and V. Bodrova, eds.(ceneva, rnternational r:uour orglniE-Et6il-lEor thcomlng) ) . !2t studies cited,in R- Bulatao, Rgducing fertility in developind countries(washington,D.c.,wor1dBankstaff'o.ffiand87-88' p./ John D. Durand, Tt-lg-lapg!_Forcg in Economi.c Development. - A compa r ison ofrlt+r na tlgg? 1 cen tew Jers@Press, 1975). !/ "Mortality and health policy: highligttts of the issues in the conrext ofthe world popularion ptan of Action., in xe!rC-r_i$.!,9_jg3!!h_:gf.i.g. ( sTlEsA/sER. A/9r. ) (unired Narions puuticaG]i-sa res No. a.84,xrrr.4).A/ 40 /5L9 English Page 125 SaBulletinIgggg (continued) Dorothy s. Thomas, Research Memorandum on liligration Differentials' Iio. 43 (New York: Sociaf sci.ence Research Council, 1938), p' 1' Q/ tor a summary ofmany sludies on the ageselectivity of migration, see TheDeterminants and of (United Nations Publica tion, l{o. E.71.xIII.5), P. 3y Durand, op. ci t.l-8r. 25,/ AIan Gilbert and Josef Gugler, Citleq' PgverEY,ang DevelgPgrgDt - Urbaniiation in the Third Wor lq (Oxfortt, Oxford University Press, IeEz,. 25l Michael Lipton, why Poor People Stav Poor -- A. studY. of-Urban Pias in World-Eevelopment (CamUr iaEEl-Edsactrusetts, ltarvard University Preser 1977).