Cita APA (7a ed.)

Duffy, C. A., & Hudson, A. (2004). Doris the giant. Puffin Books.

Cita Chicago Style (17a ed.)

Duffy, Carol Ann, y Annabel Hudson. Doris the Giant. London: Puffin Books, 2004.

Cita MLA (9a ed.)

Duffy, Carol Ann, y Annabel Hudson. Doris the Giant. Puffin Books, 2004.