Levinson, H., & Lang, C. (1981). Executive. Harvard University Press.
Cita Chicago Style (17a ed.)Levinson, Harry, y Cynthia Lang. Executive. Cambridge (Massachusetts) [etc.]: Harvard University Press, 1981.
Cita MLA (9a ed.)Levinson, Harry, y Cynthia Lang. Executive. Harvard University Press, 1981.
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