Krueger, D. E. (1974). Operant group therapy with delinquent boys using therapist's versus peer's reinforcement. Univ. Microfilms.
Cita Chicago Style (17a ed.)Krueger, Doris El-Tawil. Operant Group Therapy with Delinquent Boys Using Therapist's Versus Peer's Reinforcement. Ann Arbor, Mich: Univ. Microfilms, 1974.
Cita MLA (9a ed.)Krueger, Doris El-Tawil. Operant Group Therapy with Delinquent Boys Using Therapist's Versus Peer's Reinforcement. Univ. Microfilms, 1974.
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