APA (7th ed.) Citation

Students for a Democratic Society (U.S.), Dreyer, T., & Schonenberg, J. (1966). Free poetry. [Distributed by Students for a Democratic Society].

Chicago Style (17th ed.) Citation

Students for a Democratic Society (U.S.), Thorne Dreyer, and John Schonenberg. Free Poetry. [San Francisco, Calif.]: [Distributed by Students for a Democratic Society], 1966.

MLA (9th ed.) Citation

Students for a Democratic Society (U.S.), et al. Free Poetry. [Distributed by Students for a Democratic Society], 1966.