Cita APA (7th ed.)

Sharp, A. M., Register, C. A., & Grimes, P. W. (2006). Economics of social issues (17th ed.). McGraw-Hill/Irwin.

Cita Chicago (17th ed.)

Sharp, Ansel Miree, Charles A. Register, i Paul W. Grimes. Economics of Social Issues. 17th ed. New York: McGraw-Hill/Irwin, 2006.

Cita MLA (9th ed.)

Sharp, Ansel Miree, et al. Economics of Social Issues. 17th ed. McGraw-Hill/Irwin, 2006.