APA (7th ed.) Citation

Wittels, F., Paul, C., & Paul, E. (1932). Set the children free! G. Allen & Unwin, ltd..

Chicago Style (17th ed.) Citation

Wittels, Fritz, Cedar Paul, and Eden Paul. Set the Children Free! London: G. Allen & Unwin, ltd., 1932.

MLA (8th ed.) Citation

Wittels, Fritz, et al. Set the Children Free! G. Allen & Unwin, ltd., 1932.