Sheldon, W. H., & Stevens, S. S. (1942). The varieties of temperament: A psychology of constitutional differences. Harper.
Lua i Stíl Chicago (17ú heag.)Sheldon, William Herbert, agus Stanley Smith Stevens. The Varieties of Temperament: A Psychology of Constitutional Differences. New York: Harper, 1942.
Lua MLA (9ú heag.)Sheldon, William Herbert, agus Stanley Smith Stevens. The Varieties of Temperament: A Psychology of Constitutional Differences. Harper, 1942.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.