Παραπομπή σε μορφή APA (7η εκδ.)

Turnham, D. (1971). The employment problem in less developed countries: A review of evidence. Organization for Economic Cooperation and Development.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Turnham, David. The Employment Problem in Less Developed Countries: A Review of Evidence. Paris: Organization for Economic Cooperation and Development, 1971.

Παραπομπή σε μορφή MLA (9th εκδ.)

Turnham, David. The Employment Problem in Less Developed Countries: A Review of Evidence. Organization for Economic Cooperation and Development, 1971.