APA-ийн эшлэл(7 дахь хэвлэлт)

Cummings, J. L., & Thomas, J. (2000). The value of psychological treatment: The collected papers of Nicholas A. Cummings. Zeig, Tucker & Co..

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Cummings, Janet L., ба J.Lawrence Thomas. The Value of Psychological Treatment: The Collected Papers of Nicholas A. Cummings. Phoenix: Zeig, Tucker & Co., 2000.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Cummings, Janet L., ба J.Lawrence Thomas. The Value of Psychological Treatment: The Collected Papers of Nicholas A. Cummings. Zeig, Tucker & Co., 2000.