Savage, S. (2011). Where's Walrus? (First edition.). Scholastic Press.
Cita Chicago Style (17a ed.)Savage, Stephen. Where's Walrus? First edition. New York: Scholastic Press, 2011.
Cita MLA (8a ed.)Savage, Stephen. Where's Walrus? First edition. Scholastic Press, 2011.
Precaución: Estas citas no son 100% exactas.