Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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