Cita APA (7th ed.)

Cumming, I. (1955). Helvetius: His life and place in the history of educational thought. Routledge and Kegan Paul.

Cita Chicago (17th ed.)

Cumming, Ian. Helvetius: His Life and Place in the History of Educational Thought. London: Routledge and Kegan Paul, 1955.

Cita MLA (8th ed.)

Cumming, Ian. Helvetius: His Life and Place in the History of Educational Thought. Routledge and Kegan Paul, 1955.