APA (7th ed.) Citation

Hazen, C. D. (1923). Europe since 815. Bell and Sons.

Chicago Style (17th ed.) Citation

Hazen, Charles Downer. Europe Since 815. Bell and Sons, 1923.

MLA (9th ed.) Citation

Hazen, Charles Downer. Europe Since 815. Bell and Sons, 1923.

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