> Verlagsreihe
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31:
Studies in labor markets [papers presented at the Conference on Low Income Labour Markets held at ... 9 and 10 june 1978] ed. by Sherwin Rosen
Chicago, Ill. [u.a.]: Univ. of Chicago Press, 1981
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30:
Population and economic change in developing countries ed. by Richard A. Easterlin. National Bureau of Economic Research
Chicago [u.a.]: Univ. of Chicago Pr, 1980