Cita APA (7a ed.)

Lannon, M. Insights into business (teacher?s book). [s.n].

Cita Chicago Style (17a ed.)

Lannon, Michael. Insights into Business (teacher?s Book). NelSon, U.K: [s.n].

Cita MLA (9a ed.)

Lannon, Michael. Insights into Business (teacher?s Book). [s.n].