APA (7th ed.) Citation

United States. Extension Service. (1935). Discussion, a brief guide to methods [for establishing discussion groups]. [s.n.].

Chicago Style (17th ed.) Citation

United States. Extension Service. Discussion, a Brief Guide to Methods [for Establishing Discussion Groups]. [Washington]: [s.n.], 1935.

MLA (9th ed.) Citation

United States. Extension Service. Discussion, a Brief Guide to Methods [for Establishing Discussion Groups]. [s.n.], 1935.