Cita APA (7a ed.)

Ketelhöhn, W. (1995). International business strategy. Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Ketelhöhn, Werner. International Business Strategy. Oxford [etc.]: Butterworth-Heinemann, 1995.

Cita MLA (9a ed.)

Ketelhöhn, Werner. International Business Strategy. Butterworth-Heinemann, 1995.