APA (7th ed.) Citation

Howard, L., Browne, R. B., & Pizer, D. (1969). Themes and directions in American literature: Essays in honor of Leon Howard. Purdue University Studies.

Chicago Style (17th ed.) Citation

Howard, Leon, Ray B. Browne, and Donald Pizer. Themes and Directions in American Literature: Essays in Honor of Leon Howard. Lafayette, Ind.: Purdue University Studies, 1969.

MLA (9th ed.) Citation

Howard, Leon, et al. Themes and Directions in American Literature: Essays in Honor of Leon Howard. Purdue University Studies, 1969.