Cita APA (7th ed.)
Grossman, G. (1967). Economic systems (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)
Grossman, Gregory. Economic Systems. 2nd ed. New Jersey: Prentice-Hall, 1967.
Cita MLA (9th ed.)
Grossman, Gregory. Economic Systems. 2nd ed. Prentice-Hall, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.