Cita APA

Wickham, F. R., Campa, A. L., & Sanchez, G. I. (1943). Practical handbook of Spanish commercial correspondence. Macmillan.

Citación estilo Chicago

Wickham, Fletcher Ryan, Artur Leon Campa, and George Isidore Sanchez. Practical Handbook of Spanish Commercial Correspondence. New York: Macmillan, 1943.

Cita MLA

Wickham, Fletcher Ryan, et al. Practical Handbook of Spanish Commercial Correspondence. Macmillan, 1943.