The problem of development a conference of the Institute for the Study of Free Enterprise Systems - Ehrlich, Isaac; Becker, Gary S. 1930-2014 (Univ. of Chicago Press, 1990)
Einzelaufnahme eines Zs.-Heftes. - Enth. u.a.: The problem of development / Isaac Ehrlich. Human capital, fertility, and economic growth / Gary S. Becker