Trewartha, G. T. (1972). The Less developed realm: A geography of its population. John Wiley and Sons.
Chicago-Zitierstil (17. Ausg.)Trewartha, Glenn T. The Less Developed Realm: A Geography of Its Population. John Wiley and Sons, 1972.
MLA-Zitierstil (9. Ausg.)Trewartha, Glenn T. The Less Developed Realm: A Geography of Its Population. John Wiley and Sons, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.