Παραπομπή σε μορφή APA (7η εκδ.)

Barth, F. (1967). The role of the entrepreneur in social change in Northern Norway. Universitetsforlaget.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barth, Fredrik. The Role of the Entrepreneur in Social Change in Northern Norway. Bergen : Oslo: Universitetsforlaget, 1967.

Παραπομπή σε μορφή MLA (9th εκδ.)

Barth, Fredrik. The Role of the Entrepreneur in Social Change in Northern Norway. Universitetsforlaget, 1967.