APA (7th ed.) Citation

Blyton, E. (1948). The tale of Mr. Wumble. W. & A.K. Johnston.

Chicago Style (17th ed.) Citation

Blyton, Enid. The Tale of Mr. Wumble. London, etc: W. & A.K. Johnston, 1948.

MLA (9th ed.) Citation

Blyton, Enid. The Tale of Mr. Wumble. W. & A.K. Johnston, 1948.