Cita APA (7a ed.)
Torre, F. d. l., & Patán, R. E. (1990). Through the world of tourism: A technical english course for students of tourism (2a ed.). Trillas.
Cita Chicago Style (17a ed.)
Torre, Francisco de la, y Rosa Elena Patán. Through the World of Tourism: A Technical English Course for Students of Tourism. 2a ed. México: Trillas, 1990.
Cita MLA (9a ed.)
Torre, Francisco de la, y Rosa Elena Patán. Through the World of Tourism: A Technical English Course for Students of Tourism. 2a ed. Trillas, 1990.
Precaución: Estas citas no son 100% exactas.