APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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