Cita APA (7a ed.)

Frank, C., Rinvolucri, M., & Berer, M. (1983). Challenge to think. Oxford university.

Cita Chicago Style (17a ed.)

Frank, Christine, Mario Rinvolucri, y Marge Berer. Challenge to Think. Oxford: Oxford university, 1983.

Cita MLA (9a ed.)

Frank, Christine, et al. Challenge to Think. Oxford university, 1983.