Citazione Stile APA (7a Edizione)

Clemmons, W. P., & Hester, H. (1974). Growth through groups. Broadman Press.

Citazione stile Chigago Style (17a edizione)

Clemmons, William P., e Harvey Hester. Growth Through Groups. Nashville: Broadman Press, 1974.

Citatione MLA (9a ed.)

Clemmons, William P., e Harvey Hester. Growth Through Groups. Broadman Press, 1974.