APA (7th ed.) Citation

Krieger, L. (1957). The horizons of history. The American historical review. - American Historical Association.

Chicago Style (17th ed.) Citation

Krieger, Leonard. "The Horizons of History." The American Historical Review. - American Historical Association 1957.

MLA (8th ed.) Citation

Krieger, Leonard. "The Horizons of History." The American Historical Review. - American Historical Association, 1957.

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