Simon, F., & Ross, T. (2009). Horrid Henry and the mega-mean time machine. Sourcebooks.
Cita Chicago Style (17a ed.)Simon, Francesca, y Tony Ross. Horrid Henry and the Mega-mean Time Machine. Naperville, Ill.: Sourcebooks, 2009.
Cita MLA (8a ed.)Simon, Francesca, y Tony Ross. Horrid Henry and the Mega-mean Time Machine. Sourcebooks, 2009.
Precaución: Estas citas no son 100% exactas.