APA (7th ed.) Citation

Hazen, C. D. (1923). Europe since 1815 (Rev. & enl.). H. Holt and company.

Chicago Style (17th ed.) Citation

Hazen, Charles Downer. Europe Since 1815. Rev. & enl. New York: H. Holt and company, 1923.

MLA (9th ed.) Citation

Hazen, Charles Downer. Europe Since 1815. Rev. & enl. H. Holt and company, 1923.