APA (7th ed.) Zitazioa

Heyer, S. (1994). Easy true stories: A picture-based beginning reader. Longman.

Chicago Style (17th ed.) Zitazioa

Heyer, Sandra. Easy True Stories: A Picture-based Beginning Reader. Nueva York: Longman, 1994.

MLA (9th ed.) Zitazioa

Heyer, Sandra. Easy True Stories: A Picture-based Beginning Reader. Longman, 1994.