Citazione Stile APA (7a Edizione)

Aldis, D., & Cuffari, R. (1977). Nothing is impossible: The story of Beatrix Potter. Atheneum.

Citazione stile Chigago Style (17a edizione)

Aldis, Dorothy, e Richard Cuffari. Nothing Is Impossible: The Story of Beatrix Potter. New York: Atheneum, 1977.

Citatione MLA (9a ed.)

Aldis, Dorothy, e Richard Cuffari. Nothing Is Impossible: The Story of Beatrix Potter. Atheneum, 1977.