APA (7th ed.) Citation

Wagner, R. H., & Arnold, C. C. j. a. (1950). Handbook of group discussion. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Wagner, Russell Halderman, and Carroll C. joint author Arnold. Handbook of Group Discussion. Boston: Houghton Mifflin, 1950.

MLA (9th ed.) Citation

Wagner, Russell Halderman, and Carroll C. joint author Arnold. Handbook of Group Discussion. Houghton Mifflin, 1950.