APA (7th ed.) Citation

Harrer, G. A. (1919). Rome and Her Subject Peoples.

Chicago Style (17th ed.) Citation

Harrer, G. A. Rome and Her Subject Peoples. 1919.

MLA (9th ed.) Citation

Harrer, G. A. Rome and Her Subject Peoples. 1919.

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