Cita APA (7a ed.)

Pfister, M. (2008). Bertie at bedtime. North-South Books.

Cita Chicago Style (17a ed.)

Pfister, Marcus. Bertie at Bedtime. New York: North-South Books, 2008.

Cita MLA (8a ed.)

Pfister, Marcus. Bertie at Bedtime. North-South Books, 2008.

Precaución: Estas citas no son 100% exactas.