TY  - CHAP
A1  - McAllister, F.
A1  - Clarke, L. 
T1  - Voluntary childlessness: Trends and implications
Y1  - 2000
DO  - 10.1017/cbo9780511613036.006
A3  - Bentley, G.R.
A3  - Mascie-Taylor, C.G.N. 
T2  - Infertility in the modern world. Present and future prospects
CY  - Cambridge
PB  - Cambridge University Press

ER  -