Cita APA (7a ed.)

Slade, S., & Phillips, G. R. (2008). Animals are sleeping. Sylvan Dell Publishing.

Cita Chicago Style (17a ed.)

Slade, Suzanne, y Gary R. Phillips. Animals Are Sleeping. Mount Pleasant, S.C.: Sylvan Dell Publishing, 2008.

Cita MLA (8a ed.)

Slade, Suzanne, y Gary R. Phillips. Animals Are Sleeping. Sylvan Dell Publishing, 2008.

Precaución: Estas citas no son 100% exactas.