Cita APA (7th ed.)
Punnett, B. J., & Ricks, D. A. (1992). International business. Pws - Kent Pub. Co..
Cita Chicago (17th ed.)
Punnett, Betty Jane, i David A. Ricks. International Business. Boston: Pws - Kent Pub. Co., 1992.
Cita MLA (9th ed.)
Punnett, Betty Jane, i David A. Ricks. International Business. Pws - Kent Pub. Co., 1992.
Atenció: Aquestes cites poden no estar 100% correctes.