APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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