Burdick, E., & Wheeler, H. (1962). Fail-safe. McGraw-Hill.
Cita Chicago (17th ed.)Burdick, Eugene, i Harvey Wheeler. Fail-safe. New York: McGraw-Hill, 1962.
Cita MLA (9th ed.)Burdick, Eugene, i Harvey Wheeler. Fail-safe. McGraw-Hill, 1962.
Atenció: Aquestes cites poden no estar 100% correctes.