APA aipamena

Carroll Roopam. Sammy The Snail. National Book Trust.

Chicago Style aipamena

Carroll Roopam. Sammy The Snail. 2012 2012: National Book Trust.

MLA aipamena

Carroll Roopam. Sammy The Snail. National Book Trust.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.