APA (7 ম সংস্করণ) উদ্ধৃতি

Hartshorn, J. E. (1962). Politics snd world oil economics, an account of the international oil industry in its political environment. Praeger.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Hartshorn, J. E. Politics Snd World Oil Economics, an Account of the International Oil Industry in Its Political Environment. New York: Praeger, 1962.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Hartshorn, J. E. Politics Snd World Oil Economics, an Account of the International Oil Industry in Its Political Environment. Praeger, 1962.