Cipolla, C. M. (1967). The economic history of world population (Fourth edition.). Penguin Books.
Lua i Stíl Chicago (17ú heag.)Cipolla, Carlo M. The Economic History of World Population. Fourth edition. Harmondsworth: Penguin Books, 1967.
Lua MLA (8ú heag.)Cipolla, Carlo M. The Economic History of World Population. Fourth edition. Penguin Books, 1967.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.