TY  - JOUR
A1  - Ní Bhrolcháin, Máire
T1  - Period Parity Progression Ratios and Birth Intervals in England and Wales, 1941–1971: A Synthetic Life Table Analysis
Y1  - 1987
DO  - 10.1080/0032472031000142556
JF  - Population Studies
VL  - 41
IS  - 1
SP  - 103
EP  - -125

ER  -