APA (7 ম সংস্করণ) উদ্ধৃতি

Headland, T. N. (1986). Why foragers do not become farmers: A historical study of changing ecosystem and its effect on a Negrito hunter-gatherer group in the Philippines. UMI Dissertation Services.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Headland, Thomas N. Why Foragers Do Not Become Farmers: A Historical Study of Changing Ecosystem and Its Effect on a Negrito Hunter-gatherer Group in the Philippines. Ann Arbor, Mich: UMI Dissertation Services, 1986.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Headland, Thomas N. Why Foragers Do Not Become Farmers: A Historical Study of Changing Ecosystem and Its Effect on a Negrito Hunter-gatherer Group in the Philippines. UMI Dissertation Services, 1986.