Cita APA (7a ed.)

Schmalleger, F., & Smykla, J. O. (2009). Corrections in the 21st century (4. ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Schmalleger, Frank, y John Ortiz Smykla. Corrections in the 21st Century. 4. ed. Boston [u.a.]: McGraw-Hill, 2009.

Cita MLA (8a ed.)

Schmalleger, Frank, y John Ortiz Smykla. Corrections in the 21st Century. 4. ed. McGraw-Hill, 2009.