Lua APA (7ú heag.)

Keyfitz, N., & Flieger, W. (1971). Population: Facts and methods of demography. W. H. Freeman.

Lua i Stíl Chicago (17ú heag.)

Keyfitz, Nathan, agus Wilhelm Flieger. Population: Facts and Methods of Demography. San Francisco: W. H. Freeman, 1971.

Lua MLA (8ú heag.)

Keyfitz, Nathan, agus Wilhelm Flieger. Population: Facts and Methods of Demography. W. H. Freeman, 1971.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.