APA (7th ed.) Citation

Drude, P. (1959). The theory of optics. Dover Publications.

Chicago Style (17th ed.) Citation

Drude, Paul. The Theory of Optics. New York: Dover Publications, 1959.

MLA (9th ed.) Citation

Drude, Paul. The Theory of Optics. Dover Publications, 1959.

Warning: These citations may not always be 100% accurate.