APA (7th ed.) Citation

Heim, J., Heim, J., & Callahan, M. (1994). The best guide to business shareware. Osborne McGraw-hill.

Chicago Style (17th ed.) Citation

Heim, Judy, John Heim, and Mike Callahan. The Best Guide to Business Shareware. New York: Osborne McGraw-hill, 1994.

MLA (9th ed.) Citation

Heim, Judy, et al. The Best Guide to Business Shareware. Osborne McGraw-hill, 1994.