APA (7th ed.) Citation

Grundy, G. B. The great Persian War and its preliminaries.

Chicago Style (17th ed.) Citation

Grundy, G. B. The Great Persian War and Its Preliminaries.

MLA (9th ed.) Citation

Grundy, G. B. The Great Persian War and Its Preliminaries.

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