APA (7th ed.) Citation

Coyle, G. L. (1948). Group work with American youth ([1st ed.].). Harper.

Chicago Style (17th ed.) Citation

Coyle, Grace Longwell. Group Work with American Youth. [1st ed.]. [Place of publication not identified]: Harper, 1948.

MLA (9th ed.) Citation

Coyle, Grace Longwell. Group Work with American Youth. [1st ed.]. Harper, 1948.