Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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