Cita APA (7th ed.)
Hyman, D. N. (1992). Study guide for use with Economics (2nd.ed.). IRWIN.
Cita Chicago (17th ed.)
Hyman, David N. Study Guide for Use with Economics. 2nd.ed. Illinois: IRWIN, 1992.
Cita MLA (9th ed.)
Hyman, David N. Study Guide for Use with Economics. 2nd.ed. IRWIN, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.