Cita APA (7a ed.)

Willems, M. (2010). Time to sleep, Sheep the sheep! (First edition.). Balzer + Bray, an imprint of HarperCollinsPublishers.

Cita Chicago Style (17a ed.)

Willems, Mo. Time to Sleep, Sheep the Sheep! First edition. New York, NY: Balzer + Bray, an imprint of HarperCollinsPublishers, 2010.

Cita MLA (8a ed.)

Willems, Mo. Time to Sleep, Sheep the Sheep! First edition. Balzer + Bray, an imprint of HarperCollinsPublishers, 2010.

Precaución: Estas citas no son 100% exactas.