APA (7th ed.) Citation

Guitton, J. (1948). Difficultés de croire. Plon.

Chicago Style (17th ed.) Citation

Guitton, Jean. Difficultés De Croire. Paris: Plon, 1948.

MLA (9th ed.) Citation

Guitton, Jean. Difficultés De Croire. Plon, 1948.

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