Cita APA (7th ed.)

Herrnstein, R. J., & Murray, C. (1994). The Bell curve: Intelligence and class structure in American life. The Free Prress.

Cita Chicago (17th ed.)

Herrnstein, Richard J., i Charles Murray. The Bell Curve: Intelligence and Class Structure in American Life. New York: The Free Prress, 1994.

Cita MLA (9th ed.)

Herrnstein, Richard J., i Charles Murray. The Bell Curve: Intelligence and Class Structure in American Life. The Free Prress, 1994.

Atenció: Aquestes cites poden no estar 100% correctes.