Grossman, G. (1974). Economic systems (2d ed.). Prentice-Hall.
Cita Chicago (17th ed.)Grossman, Gregory. Economic Systems. 2d ed. Englewood Cliffs, N.J.: Prentice-Hall, 1974.
Cita MLA (8th ed.)Grossman, Gregory. Economic Systems. 2d ed. Prentice-Hall, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.