Shepherd, W. G. (1990). The economics of industrial organization (3rd ed.). Prentice Hall.
Cita Chicago (17th ed.)Shepherd, William G. The Economics of Industrial Organization. 3rd ed. Englewood Cliffs, N.J: Prentice Hall, 1990.
Cita MLA (9th ed.)Shepherd, William G. The Economics of Industrial Organization. 3rd ed. Prentice Hall, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.