APA Citation

Amacher, R. C., & Ulbrich, H. H. (1989). Principles of economics (4th ed.). Cincinnati OH: South-Western Pub. Co..

Chicago Style Citation

Amacher, Ryan C., and Holley H. Ulbrich. Principles of Economics. 4th ed. Cincinnati OH: South-Western Pub. Co., 1989.

MLA Citation

Amacher, Ryan C., and Holley H. Ulbrich. Principles of Economics. 4th ed. Cincinnati OH: South-Western Pub. Co., 1989.

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