Cita APA (7a ed.)

Conrad, J. P. (1991). The pessimistic reflections of a chronic optimist. Federal probation, 55(2), 4-9.

Cita Chicago Style (17a ed.)

Conrad, John P. "The Pessimistic Reflections of a Chronic Optimist." Federal Probation 55, no. 2 (1991): 4-9.

Cita MLA (9a ed.)

Conrad, John P. "The Pessimistic Reflections of a Chronic Optimist." Federal Probation, vol. 55, no. 2, 1991, pp. 4-9.