Lehman, J. F. (1981). Beyond the salt II failure. Praeger.
Cita Chicago (17th ed.)Lehman, John F. Beyond the Salt II Failure. New York: Praeger, 1981.
Cita MLA (9th ed.)Lehman, John F. Beyond the Salt II Failure. Praeger, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.