APA (7th ed.) Citation

Blum, L. (1945). A l'échelle humaine. Lausanne: Mermod.

Chicago Style (17th ed.) Citation

Blum, Léon. A L'échelle Humaine. Lausanne: Mermod, 1945.

MLA (8th ed.) Citation

Blum, Léon. A L'échelle Humaine. Lausanne: Mermod, 1945.

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