APA (7 ম সংস্করণ) উদ্ধৃতি

organization for economic cooperation.. (1971). energy agency. organization for economic cooperation.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

organization for economic cooperation.. Energy Agency. Organization for Economic Cooperation. 1st ed. | Activity, 1971.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

organization for economic cooperation.. Energy Agency. Organization for Economic Cooperation. 1971.