APA (7th ed.) Citation

Kraus, O., & McCalman, E. G. (1944). Albert Schweitzer: His work and his philosophy. A. & C. Black.

Chicago Style (17th ed.) Citation

Kraus, Oskar, and E. G. McCalman. Albert Schweitzer: His Work and His Philosophy. London: A. & C. Black, 1944.

MLA (9th ed.) Citation

Kraus, Oskar, and E. G. McCalman. Albert Schweitzer: His Work and His Philosophy. A. & C. Black, 1944.