APA aipamena

Silverstein, S. (2006). The giving tree. HarperCollinsPublishers.

Chicago Style aipamena

Silverstein, Shel. The Giving Tree. New York: HarperCollinsPublishers, 2006.

MLA aipamena

Silverstein, Shel. The Giving Tree. HarperCollinsPublishers, 2006.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.