Anderson B.A.
Changes in the seasonality of births as an indicator & improvement of registration: the case of the Soviet Union - Michigan US 1987 - 26p - PSC research report .
US/Mic.U/PSC/RR-87/108
Changes in the seasonality of births as an indicator & improvement of registration: the case of the Soviet Union - Michigan US 1987 - 26p - PSC research report .
US/Mic.U/PSC/RR-87/108