APA aipamena

Hopgood, T. (2014). Hooray for Hoppy. New York: Tim Hopgood.

Chicago Style aipamena

Hopgood, Tim. Hooray for Hoppy. New York: Tim Hopgood, 2014.

MLA aipamena

Hopgood, Tim. Hooray for Hoppy. New York: Tim Hopgood, 2014.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.