APA (7th ed.) Citation

Welch, P. J. A., & Welch, G. F. C. (2013). Economics: Theory & practice (10th ed.). Wiley.

Chicago Style (17th ed.) Citation

Welch, Patrick J Author, and Gerry F Contributor Welch. Economics: Theory & Practice. 10th ed. [Place of publication not identified]: Wiley, 2013.

MLA (9th ed.) Citation

Welch, Patrick J Author, and Gerry F Contributor Welch. Economics: Theory & Practice. 10th ed. Wiley, 2013.