Cita APA (7a ed.)

Welch, G. J. (1983). Contingency contracting with the families of delinquents. Univ. Microfilms Internat.

Cita Chicago Style (17a ed.)

Welch, Gary J. Contingency Contracting with the Families of Delinquents. Ann Arbor, Mich: Univ. Microfilms Internat, 1983.

Cita MLA (9a ed.)

Welch, Gary J. Contingency Contracting with the Families of Delinquents. Univ. Microfilms Internat, 1983.