APA (7 ম সংস্করণ) উদ্ধৃতি

Birks, J. S. (1978). Human capital on the Nile: Development and emigration in the Arab Republic of Egypt and the Democratic Republic of Sudan. International Labour Office.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Birks, J. S. Human Capital on the Nile: Development and Emigration in the Arab Republic of Egypt and the Democratic Republic of Sudan. Geneva [Switzerland]: International Labour Office, 1978.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Birks, J. S. Human Capital on the Nile: Development and Emigration in the Arab Republic of Egypt and the Democratic Republic of Sudan. International Labour Office, 1978.