APA (7th ed.) Citation

Welch, P. J. (1992). Economics, theory and practice: Patrick J. Welch (4th ed.). Dryden Press.

Chicago Style (17th ed.) Citation

Welch, Patrick J. Economics, Theory and Practice: Patrick J. Welch. 4th ed. Fort Worth, Tex: Dryden Press, 1992.

MLA (9th ed.) Citation

Welch, Patrick J. Economics, Theory and Practice: Patrick J. Welch. 4th ed. Dryden Press, 1992.