Irwin, T. (1966). What the executive should know about tensions. American Research Council.
Cita Chicago (17th ed.)Irwin, Theodore. What the Executive Should Know About Tensions. Larchmont, N. Y: American Research Council, 1966.
Cita MLA (9th ed.)Irwin, Theodore. What the Executive Should Know About Tensions. American Research Council, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.