Sobel, M. (1993). The 12-hour MBA program: The key concepts and techniques in a fraction of the time. Prentice-Hall.
Cita Chicago (17th ed.)Sobel, Milo. The 12-hour MBA Program: The Key Concepts and Techniques in a Fraction of the Time. Englewood Cliffs, N.J: Prentice-Hall, 1993.
Cita MLA (9th ed.)Sobel, Milo. The 12-hour MBA Program: The Key Concepts and Techniques in a Fraction of the Time. Prentice-Hall, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.