APA (7th ed.) Citation

Olby, R. C. (1967). Early Nineteenth Century European Scientists. Pergamon Press.

Chicago Style (17th ed.) Citation

Olby, Robert C. Early Nineteenth Century European Scientists. Oxford, New York: Pergamon Press, 1967.

MLA (9th ed.) Citation

Olby, Robert C. Early Nineteenth Century European Scientists. Pergamon Press, 1967.