APA Citation

RUFFIN, & Gregory. (1997). Principles of economics (6th ed.). Massachusetts: Addison-Wesley.

Chicago Style Citation

RUFFIN, and Gregory. Principles of Economics. 6th ed. Massachusetts: Addison-Wesley, 1997.

MLA Citation

RUFFIN, and Gregory. Principles of Economics. 6th ed. Massachusetts: Addison-Wesley, 1997.

Warning: These citations may not always be 100% accurate.