Cita APA (7a ed.)
Lewis,C.S. (1959). Screwtape proposes a toast: And other pieces. Collins.
Cita Chicago Style (17a ed.)
Lewis,C.S. Screwtape Proposes a Toast: And Other Pieces. New york: Collins, 1959.
Cita MLA (9a ed.)
Lewis,C.S. Screwtape Proposes a Toast: And Other Pieces. Collins, 1959.
Precaución: Estas citas no son 100% exactas.