Cita APA

Torre, F. d. l., & Patán, R. E. (2001). Steps towards an international trip: A technical english course for students of tourism (2a. ed., 3a. reimpr.). México: Trillas.

Citación estilo Chicago

Torre, Francisco de la, y Rosa Elena Patán. Steps Towards an International Trip: A Technical English Course for Students of Tourism. 2a. ed., 3a. reimpr. México: Trillas, 2001.

Cita MLA

Torre, Francisco de la, y Rosa Elena Patán. Steps Towards an International Trip: A Technical English Course for Students of Tourism. 2a. ed., 3a. reimpr. México: Trillas, 2001.