Cita APA (7a ed.)

Hughes, J. M., & Henkel, K. S. (1997). The federal probation and pretrial services system since 1975: An era of growth and change. Federal probation, 61(3), 103-111.

Cita Chicago Style (17a ed.)

Hughes, John M., y Karen S. Henkel. "The Federal Probation and Pretrial Services System Since 1975: An Era of Growth and Change." Federal Probation 61, no. 3 (1997): 103-111.

Cita MLA (9a ed.)

Hughes, John M., y Karen S. Henkel. "The Federal Probation and Pretrial Services System Since 1975: An Era of Growth and Change." Federal Probation, vol. 61, no. 3, 1997, pp. 103-111.