APA (7th ed.) Citation

Boyle, J. L. (1940). A Pictorial History of Lourdes. Philadelphia.

Chicago Style (17th ed.) Citation

Boyle, J. Leo. A Pictorial History of Lourdes. Philadelphia, 1940.

MLA (8th ed.) Citation

Boyle, J. Leo. A Pictorial History of Lourdes. Philadelphia, 1940.

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