Why fertility changes (Q34151541)
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Current Data About Why fertility changes
(P31) (Q13442814)
(P304) 203-233
(P478) 20
(P577) Saturday, January 1, 1994
(P1433) (Q4769674)
(P1476) "Why fertility changes" (language: en)
(P2093) C Hirschman
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