APA (7th ed.) Citation

Langlois, C., & Seignobos, C. Introduction to the Study of History. Holt and Company.

Chicago Style (17th ed.) Citation

Langlois, Ch.V, and Ch Seignobos. Introduction to the Study of History. New York: Holt and Company.

MLA (8th ed.) Citation

Langlois, Ch.V, and Ch Seignobos. Introduction to the Study of History. Holt and Company.