APA (7th ed.) Citation

Gilles, R. C. (1968). How Caesar bridged the Rhine.

Chicago Style (17th ed.) Citation

Gilles, Robert C. How Caesar Bridged the Rhine. 1968.

MLA (9th ed.) Citation

Gilles, Robert C. How Caesar Bridged the Rhine. 1968.

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