Henretta, JC; Grundy, E; Harris, S; (2001) Socioeconomic differences in having living parents and children: A US-British comparison of middle-aged women. Journal of marriage and the family, 63 (3). pp. 852-867. ISSN 0022-2445 https://researchonline.lshtm.ac.uk/id/eprint/6345 Full text not available from this repository.