Παραπομπή σε μορφή APA (7η εκδ.)

Blank, S. (1980). Assessing the political environment: An emerging function in international companies. Conference Board.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Blank, Stephen. Assessing the Political Environment: An Emerging Function in International Companies. New York, N.Y: Conference Board, 1980.

Παραπομπή σε μορφή MLA (9th εκδ.)

Blank, Stephen. Assessing the Political Environment: An Emerging Function in International Companies. Conference Board, 1980.