Cita APA (7a ed.)

Lannon, M., Tullis, G., & Trappe, T. (1993). Insights into business. Nelson english language teaching.

Cita Chicago Style (17a ed.)

Lannon, Michael, Graham Tullis, y Tonya Trappe. Insights into Business. Londres: Nelson english language teaching, 1993.

Cita MLA (9a ed.)

Lannon, Michael, et al. Insights into Business. Nelson english language teaching, 1993.