APA (7th ed.) Citation

Padilla, J., Goetz, E. R., Willemetz, A., & Sinos, E. M. (1940). Who'll buy my violets: La violetera. Harms.

Chicago Style (17th ed.) Citation

Padilla, Jose, E. Ray Goetz, Albert Willemetz, and Eduardo Monte Sinos. Who'll Buy My Violets: La Violetera. New York: Harms, 1940.

MLA (9th ed.) Citation

Padilla, Jose, et al. Who'll Buy My Violets: La Violetera. Harms, 1940.