Caldwell, J. C. (2006). Demographic Transition Theory. Springer Netherlands. https://doi.org/10.1007/978-1-4020-4498-4
Lua i Stíl Chicago (17ú heag.)Caldwell, John C. Demographic Transition Theory. Dordrecht: Springer Netherlands, 2006. https://doi.org/10.1007/978-1-4020-4498-4.
Lua MLA (9ú heag.)Caldwell, John C. Demographic Transition Theory. Springer Netherlands, 2006. https://doi.org/10.1007/978-1-4020-4498-4.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.