Davis, H. C. (1995). Demographic projection techniques for regions and smaller areas: A primer. UBC Press.
Lua i Stíl Chicago (17ú heag.)Davis, H. Craig. Demographic Projection Techniques for Regions and Smaller Areas: A Primer. Vancouver: UBC Press, 1995.
Lua MLA (9ú heag.)Davis, H. Craig. Demographic Projection Techniques for Regions and Smaller Areas: A Primer. UBC Press, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.