APA (7th ed.) Citation

Ponsonby, A. P. Wars & Treaties, 1815 to 1914.

Chicago Style (17th ed.) Citation

Ponsonby, Arthur Ponsonby. Wars & Treaties, 1815 to 1914.

MLA (9th ed.) Citation

Ponsonby, Arthur Ponsonby. Wars & Treaties, 1815 to 1914.

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