Lua APA (7ú heag.)
Day, L. H. (1992). The future of low-birthrate populations. Routledge.
Lua i Stíl Chicago (17ú heag.)
Day, Lincoln H. The Future of Low-birthrate Populations. London ; New York: Routledge, 1992.
Lua MLA (9ú heag.)
Day, Lincoln H. The Future of Low-birthrate Populations. Routledge, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.