Greep, R. O. (1963). Human fertility and population problems: Proceedings of the Seminar Sponsored by the American Academy of Arts and Sciences with the support of the Ford Foundation. Cambridge, MA: Schenkman.
Παραπομπή Chicago StyleGreep, Roy O. Human Fertility and Population Problems: Proceedings of the Seminar Sponsored By the American Academy of Arts and Sciences With the Support of the Ford Foundation. Cambridge, MA: Schenkman, 1963.
Παραπομπή MLAGreep, Roy O. Human Fertility and Population Problems: Proceedings of the Seminar Sponsored By the American Academy of Arts and Sciences With the Support of the Ford Foundation. Cambridge, MA: Schenkman, 1963.
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