APA (7th ed.) Citation

Underground Press Syndicate, Liberation News Service (New York, N.Y.), & Students for a Democratic Society (U.S.). (1968). First issue. Glad Day Press.

Chicago Style (17th ed.) Citation

Underground Press Syndicate, N.Y.) Liberation News Service (New York, and Students for a Democratic Society (U.S.). First Issue. Ithaca, N.Y.: Glad Day Press, 1968.

MLA (8th ed.) Citation

Underground Press Syndicate, et al. First Issue. Glad Day Press, 1968.