Cita APA (7a ed.)

Barnett, J., McMorran, C., & Schlein, A. (1997). Para Servirle: At Your Service. [and] Walking the Multilingual Walk.

Cita Chicago Style (17a ed.)

Barnett, John, Charles McMorran, y Andrew Schlein. Para Servirle: At Your Service. [and] Walking the Multilingual Walk. 1997.

Cita MLA (9a ed.)

Barnett, John, et al. Para Servirle: At Your Service. [and] Walking the Multilingual Walk. 1997.