Gray, R. H., & Leridon, H. (1993). Biomedical and demographic determinants of reproduction. Clarendon Press.
Čikaški stil citiranja (17. izdanje)Gray, Ronald H., i Henri Leridon. Biomedical and Demographic Determinants of Reproduction. Oxford: Clarendon Press, 1993.
MLA način citiranja (9. izdanje)Gray, Ronald H., i Henri Leridon. Biomedical and Demographic Determinants of Reproduction. Clarendon Press, 1993.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.