Cita APA (7a ed.)

Lewis, C. S. (1962). They asked for a paper: Papers and addresses. Bles.

Cita Chicago Style (17a ed.)

Lewis, C. S. They Asked for a Paper: Papers and Addresses. London: Bles, 1962.

Cita MLA (9a ed.)

Lewis, C. S. They Asked for a Paper: Papers and Addresses. Bles, 1962.