APA (7e ed.) Bronvermelding

Zonis, M., & Semler, D. (1992). The East European opportunity: The complete business guide and sourcebook. Wiley.

Chicago (17e ed.) Bronvermelding

Zonis, Marvin, en Dwight Semler. The East European Opportunity: The Complete Business Guide and Sourcebook. New York: Wiley, 1992.

MLA (8e ed.) Bronvermelding

Zonis, Marvin, en Dwight Semler. The East European Opportunity: The Complete Business Guide and Sourcebook. Wiley, 1992.