Cita APA

Roberts, A. W., & Roberts, A. W. (1968). Introductory calculus. New York, New York: Academic Press.

Citación estilo Chicago

Roberts, Arthur Wayne, y Arthur Wayne Roberts. Introductory Calculus. New York, New York: Academic Press, 1968.

Cita MLA

Roberts, Arthur Wayne, y Arthur Wayne Roberts. Introductory Calculus. New York, New York: Academic Press, 1968.