Pitelis, C., & Sugden, R. (1991). The Nature of the transnational firm. Routledge.
Chicago Style (17. basım) AtıfPitelis, Christos, ve Roger Sugden. The Nature of the Transnational Firm. London ; New York: Routledge, 1991.
MLA (9th ed.) AtıfPitelis, Christos, ve Roger Sugden. The Nature of the Transnational Firm. Routledge, 1991.