Cummings, J. L., & Thomas, J. (2000). The value of psychological treatment: The collected papers of Nicholas A. Cummings. Zeig, Tucker & Co..
Citazione stile Chigago Style (17a edizione)Cummings, Janet L., e J.Lawrence Thomas. The Value of Psychological Treatment: The Collected Papers of Nicholas A. Cummings. Phoenix: Zeig, Tucker & Co., 2000.
Citatione MLA (9a ed.)Cummings, Janet L., e J.Lawrence Thomas. The Value of Psychological Treatment: The Collected Papers of Nicholas A. Cummings. Zeig, Tucker & Co., 2000.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.