APA (7th ed.) Citation

Roberts, N. L. (1991). American peace writers, editors, and periodicals: A dictionary. Greenwood Press.

Chicago Style (17th ed.) Citation

Roberts, Nancy L. American Peace Writers, Editors, and Periodicals: A Dictionary. New York: Greenwood Press, 1991.

MLA (8th ed.) Citation

Roberts, Nancy L. American Peace Writers, Editors, and Periodicals: A Dictionary. Greenwood Press, 1991.

Warning: These citations may not always be 100% accurate.