Cita APA (7th ed.)

Waelder, R. (1967). Progress and revolution: A study of the issues of our age. International Universities Press.

Cita Chicago (17th ed.)

Waelder, Robert. Progress and Revolution: A Study of the Issues of Our Age. New York: International Universities Press, 1967.

Cita MLA (9th ed.)

Waelder, Robert. Progress and Revolution: A Study of the Issues of Our Age. International Universities Press, 1967.