APA (7th ed.) Citation

Blyton, E., & Kay, B. (1954). Good work, Secret Seven! Brockhampton Press.

Chicago Style (17th ed.) Citation

Blyton, Enid, and Bruno Kay. Good Work, Secret Seven! Leicester: Brockhampton Press, 1954.

MLA (9th ed.) Citation

Blyton, Enid, and Bruno Kay. Good Work, Secret Seven! Brockhampton Press, 1954.

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