APA (7th ed.) Zitazioa

Freeman, B. C. (1978). Two-thumb thomas. Puffin Books.

Chicago Style (17th ed.) Zitazioa

Freeman, Barbara C. Two-thumb Thomas. Harmondsworth: Puffin Books, 1978.

MLA (9th ed.) Zitazioa

Freeman, Barbara C. Two-thumb Thomas. Puffin Books, 1978.