APA (7 ম সংস্করণ) উদ্ধৃতি

Trewartha, G. T. (1972). The Less developed realm: A geography of its population. John Wiley and Sons.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Trewartha, Glenn T. The Less Developed Realm: A Geography of Its Population. John Wiley and Sons, 1972.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Trewartha, Glenn T. The Less Developed Realm: A Geography of Its Population. John Wiley and Sons, 1972.