TY  - CHAP
A1  - Pullum, T.W.
T1  - Natality. Measures based on censuses and surveys
Y1  - 2004
A3  - Siegel, J.
A3  - Swanson, D.
T2  - The Methods and materials of demography
CY  - Amsterdam
PB  - Elsevier
SP  - 407
EP  - -428

ER  -