Cita APA (7a ed.)

Horrocks, A., & Flook, H. (2010). Silas's seven grandparents. Orca Book Publishers.

Cita Chicago Style (17a ed.)

Horrocks, Anita, y Helen Flook. Silas's Seven Grandparents. Victoria, B.C.: Orca Book Publishers, 2010.

Cita MLA (8a ed.)

Horrocks, Anita, y Helen Flook. Silas's Seven Grandparents. Orca Book Publishers, 2010.

Precaución: Estas citas no son 100% exactas.