APA (7th ed.) Citation

Gide, A. (1959). La porte étroite: Roman. Mercure de France.

Chicago Style (17th ed.) Citation

Gide, André. La Porte Étroite: Roman. [S. l.]: Mercure de France, 1959.

MLA (8th ed.) Citation

Gide, André. La Porte Étroite: Roman. Mercure de France, 1959.

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