Cita APA (7a ed.)

Ryan, G. H., & Possley, M. (2020). Until I could be sure: How I stopped the death penalty in Illinois. Rowman & Littlefield.

Cita Chicago Style (17a ed.)

Ryan, George H., y Maurice Possley. Until I Could Be Sure: How I Stopped the Death Penalty in Illinois. Lanham Boulder New York London: Rowman & Littlefield, 2020.

Cita MLA (9a ed.)

Ryan, George H., y Maurice Possley. Until I Could Be Sure: How I Stopped the Death Penalty in Illinois. Rowman & Littlefield, 2020.