Cita APA (7th ed.)
Lewis,C.S. (1959). Screwtape proposes a toast: And other pieces. Collins.
Cita Chicago (17th ed.)
Lewis,C.S. Screwtape Proposes a Toast: And Other Pieces. New york: Collins, 1959.
Cita MLA (9th ed.)
Lewis,C.S. Screwtape Proposes a Toast: And Other Pieces. Collins, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.