Cita APA (7a ed.)

Klages, L., & Johnston, W. H. (1932). The science of character. Sci-Art Publishers.

Cita Chicago Style (17a ed.)

Klages, Ludwig, y W. H. Johnston. The Science of Character. Cambridge, Massachusetts: Sci-Art Publishers, 1932.

Cita MLA (9a ed.)

Klages, Ludwig, y W. H. Johnston. The Science of Character. Sci-Art Publishers, 1932.