APA (7th ed.) Citation

Bowden, E. V., & Bowden, J. H. (1981). Principles of economics: Theory. problems. policies (3rd ed.). South-western.

Chicago Style (17th ed.) Citation

Bowden, Elbert V., and Judith H. Bowden. Principles of Economics: Theory. Problems. Policies. 3rd ed. Ohio: South-western, 1981.

MLA (9th ed.) Citation

Bowden, Elbert V., and Judith H. Bowden. Principles of Economics: Theory. Problems. Policies. 3rd ed. South-western, 1981.