Citazione Stile APA (7a Edizione)

Haas, K. B., & Ewing, C. H. (1950). Tested training techniques. Prentice-Hall.

Citazione stile Chigago Style (17a edizione)

Haas, Kenneth Brooks, e Claude H. Ewing. Tested Training Techniques. New York: Prentice-Hall, 1950.

Citatione MLA (9a ed.)

Haas, Kenneth Brooks, e Claude H. Ewing. Tested Training Techniques. Prentice-Hall, 1950.