JONES, H. R. (1981). A population geography. Harper and Row.
Lua i Stíl Chicago (17ú heag.)JONES, Huw R. A Population Geography. London: Harper and Row, 1981.
Lua MLA (9ú heag.)JONES, Huw R. A Population Geography. Harper and Row, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.