Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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