APA (7th ed.) Citation

Jenny Nimmo & Maureen Bradley. (1989). The red secret. Puffin.

Chicago Style (17th ed.) Citation

Jenny Nimmo and Maureen Bradley. The Red Secret. London: Puffin, 1989.

MLA (9th ed.) Citation

Jenny Nimmo and Maureen Bradley. The Red Secret. Puffin, 1989.

Warning: These citations may not always be 100% accurate.