Cita APA (7th ed.)

Wilson, G., & Ryland, G. (1949). Social group work practice: The creative use of the social process. Houghton.

Cita Chicago (17th ed.)

Wilson, Gertrude, i Gladys Ryland. Social Group Work Practice: The Creative Use of the Social Process. Boston: Houghton, 1949.

Cita MLA (9th ed.)

Wilson, Gertrude, i Gladys Ryland. Social Group Work Practice: The Creative Use of the Social Process. Houghton, 1949.