APA (7th ed.) Citation

Wockel, M., & Schellmann, H. W. E. (1988). Who's who in (European) commerce and industry. IBP.

Chicago Style (17th ed.) Citation

Wockel, Manfred, and Hans-Joachim W. E. Schellmann. Who's Who in (European) Commerce and Industry. Berlin u.a: IBP, 1988.

MLA (9th ed.) Citation

Wockel, Manfred, and Hans-Joachim W. E. Schellmann. Who's Who in (European) Commerce and Industry. IBP, 1988.