Tressler, I. D. (1938). The Tressler quiz. Stackpole.
Cita Chicago (17th ed.)Tressler, Irving D. The Tressler Quiz. New York: Stackpole, 1938.
Cita MLA (9th ed.)Tressler, Irving D. The Tressler Quiz. Stackpole, 1938.
Atenció: Aquestes cites poden no estar 100% correctes.