Style de citation APA (7e éd.)

Westerman, M. D. (1993). The business environmental handbook. The Oasis Press/PSI Research.

Style de citation Chicago (17e éd.)

Westerman, Martin D. The Business Environmental Handbook. Grants Pass, Oregon: The Oasis Press/PSI Research, 1993.

Style de citation MLA (9e éd.)

Westerman, Martin D. The Business Environmental Handbook. The Oasis Press/PSI Research, 1993.