Cita APA (7th ed.)

Sheldon, W. H., & Stevens, S. S. (1942). The varieties of temperament: A psychology of constitutional differences. Harper.

Cita Chicago (17th ed.)

Sheldon, William Herbert, i Stanley Smith Stevens. The Varieties of Temperament: A Psychology of Constitutional Differences. New York: Harper, 1942.

Cita MLA (9th ed.)

Sheldon, William Herbert, i Stanley Smith Stevens. The Varieties of Temperament: A Psychology of Constitutional Differences. Harper, 1942.