Trewartha, G. T. (1972). The Less developed realm: A geography of its population. John Wiley and Sons.
Цитирование в стиле Чикаго (17-е изд.)Trewartha, Glenn T. The Less Developed Realm: A Geography of Its Population. John Wiley and Sons, 1972.
Цитирование MLA (9-е изд.)Trewartha, Glenn T. The Less Developed Realm: A Geography of Its Population. John Wiley and Sons, 1972.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.