Cita APA (7a ed.)

Maritain, J., & Korn, E. R. (1973). Approches sans entraves. Fayard.

Cita Chicago Style (17a ed.)

Maritain, Jacques, y Ernst R. Korn. Approches Sans Entraves. Paris: Fayard, 1973.

Cita MLA (9a ed.)

Maritain, Jacques, y Ernst R. Korn. Approches Sans Entraves. Fayard, 1973.