APA (7th ed.) Citation

Oman, C. W. C. (1926). Castles (1. impr.). Great Western Railway.

Chicago Style (17th ed.) Citation

Oman, Charles William Chadwick. Castles. 1. impr. London: Great Western Railway, 1926.

MLA (9th ed.) Citation

Oman, Charles William Chadwick. Castles. 1. impr. Great Western Railway, 1926.

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