APA (7th ed.) Zitazioa

Urlanis, B. (1971). Wars and population. Progress.

Chicago Style (17th ed.) Zitazioa

Urlanis, B. Wars and Population. Moscow: Progress, 1971.

MLA (9th ed.) Zitazioa

Urlanis, B. Wars and Population. Progress, 1971.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.