Cita APA (7a ed.)

Vawdrey, C., Stoddard, T. D., & Bell, R. D. (1993). Practical business English. Irwin.

Cita Chicago Style (17a ed.)

Vawdrey, Colleen, Ted D. Stoddard, y R. DerMont Bell. Practical Business English. Homewood [etc.]: Irwin, 1993.

Cita MLA (9a ed.)

Vawdrey, Colleen, et al. Practical Business English. Irwin, 1993.