Cita APA (7th ed.)

Gifford Griselda & Rayner, M. (1978). Cass the brave. Puffin Books.

Cita Chicago (17th ed.)

Gifford Griselda i Mary Rayner. Cass the Brave. New York: Puffin Books, 1978.

Cita MLA (9th ed.)

Gifford Griselda i Mary Rayner. Cass the Brave. Puffin Books, 1978.