Frank, C., Rinvolucri, M., & Berer, M. (1982). Challenge to think (teacher's ed.). Oxford: Oxford University Press.
Citación estilo ChicagoFrank, Christine, Mario Rinvolucri, and Marge Berer. Challenge to Think. teacher's ed. Oxford: Oxford University Press, 1982.
Cita MLAFrank, Christine, Mario Rinvolucri, and Marge Berer. Challenge to Think. teacher's ed. Oxford: Oxford University Press, 1982.
Precaución: Estas citas no son 100% exactas.