Cita APA (7th ed.)

Waller, R. (1973). Be human or die: A study of humanism in European history as the background to a philosophy of human ecology. C. Knight.

Cita Chicago (17th ed.)

Waller, Robert. Be Human or Die: A Study of Humanism in European History as the Background to a Philosophy of Human Ecology. London: C. Knight, 1973.

Cita MLA (8th ed.)

Waller, Robert. Be Human or Die: A Study of Humanism in European History as the Background to a Philosophy of Human Ecology. C. Knight, 1973.