Cita APA (7a ed.)

Box, D., Brown, K., Ewald, T., & Sells, C. (1999). Effective com (1a ed.). Addison-Wesley.

Cita Chicago Style (17a ed.)

Box, D., Kenneth Brown, T. Ewald, y C. Sells. Effective Com. 1a ed. Reading: Addison-Wesley, 1999.

Cita MLA (9a ed.)

Box, D., et al. Effective Com. 1a ed. Addison-Wesley, 1999.