APA (7th ed.) Citation

Horan, J. D. (1968). The Pinkertons: The detective dynasty that made history. Crown Publishers.

Chicago Style (17th ed.) Citation

Horan, James D. The Pinkertons: The Detective Dynasty That Made History. New York: Crown Publishers, 1968.

MLA (9th ed.) Citation

Horan, James D. The Pinkertons: The Detective Dynasty That Made History. Crown Publishers, 1968.

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