Cita APA (7a ed.)

Lewis, C. S., & Hooper, W. (1984). The business of heaven. Fount.

Cita Chicago Style (17a ed.)

Lewis, C. S., y Walter Hooper. The Business of Heaven. [London]: Fount, 1984.

Cita MLA (9a ed.)

Lewis, C. S., y Walter Hooper. The Business of Heaven. Fount, 1984.