APA (7th ed.) Citation

Helmer, W. J., & Winkeler, G. (2011). Al Capone and his American boys: Memoirs of a mobster's wife. Indiana University Press.

Chicago Style (17th ed.) Citation

Helmer, William J., and Georgette Winkeler. Al Capone and His American Boys: Memoirs of a Mobster's Wife. Bloomington: Indiana University Press, 2011.

MLA (9th ed.) Citation

Helmer, William J., and Georgette Winkeler. Al Capone and His American Boys: Memoirs of a Mobster's Wife. Indiana University Press, 2011.