1. A. Macfarlane and M. Mugford, Birth Counts: Statistics of Pregnancy and Childbirth (Tables), London, HMSO, 1984.
2. Moya Woodside, ‘Attitudes of Women Abortionists’, Howard Journal of Penology and Crime Prevention, XI, No. 2, 1963, 93–8.
3. B. Obeng, ‘500 Consecutive Cases of Abortion’, Ph.D. thesis, University of London, 1976, cited in M. Potts and J. Peel, Abortion, Cambridge, Cambridge University Press, 1977.
4. J. Keown, Abortion, Doctors and the Law, Cambridge History of Medicine, Cambridge University Press, 1988. Keith Hindell and Madeleine Simms, Abortion Law Reformed, London, Peter Owen, 1971.