Παραπομπή σε μορφή APA (7η εκδ.)

Sölvell, Ö. (1987). Entry barriers and foreign penetration: Emerging patterns of international competition in two electrical engineering industries. Stockholm School of Economics, Institute of International Business.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sölvell, Örjan. Entry Barriers and Foreign Penetration: Emerging Patterns of International Competition in Two Electrical Engineering Industries. Stockholm: Stockholm School of Economics, Institute of International Business, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

Sölvell, Örjan. Entry Barriers and Foreign Penetration: Emerging Patterns of International Competition in Two Electrical Engineering Industries. Stockholm School of Economics, Institute of International Business, 1987.