APA (7th ed.) Citation

Sampson, R. V. (1956). Progress in the age of reason: The 17th century to the present day. Heinemann.

Chicago Style (17th ed.) Citation

Sampson, Ronald V. Progress in the Age of Reason: The 17th Century to the Present Day. London [u.a.]: Heinemann, 1956.

MLA (9th ed.) Citation

Sampson, Ronald V. Progress in the Age of Reason: The 17th Century to the Present Day. Heinemann, 1956.