APA (7th ed.) Citation

Lens, S. (1981). Radicalism in America (Revised ed.). Schenkman Pub. Co..

Chicago Style (17th ed.) Citation

Lens, Sidney. Radicalism in America. Revised ed. Cambridge, Mass.: Schenkman Pub. Co., 1981.

MLA (9th ed.) Citation

Lens, Sidney. Radicalism in America. Revised ed. Schenkman Pub. Co., 1981.