APA (7th ed.) Citation

Henning, P., & Cuthbertson, W. F. (1946). Rhyme a riddle: A picture book in colour photography. Guilford Press.

Chicago Style (17th ed.) Citation

Henning, Paul, and W. F. Cuthbertson. Rhyme a Riddle: A Picture Book in Colour Photography. London: Guilford Press, 1946.

MLA (9th ed.) Citation

Henning, Paul, and W. F. Cuthbertson. Rhyme a Riddle: A Picture Book in Colour Photography. Guilford Press, 1946.