APA (7th ed.) Citation

Stone, G. W. (2012). Core economics (2nd ed.). Worth Pubishers.

Chicago Style (17th ed.) Citation

Stone, Gerald W. Core Economics. 2nd ed. New York, NY: Worth Pubishers, 2012.

MLA (9th ed.) Citation

Stone, Gerald W. Core Economics. 2nd ed. Worth Pubishers, 2012.