Cita APA (7a ed.)

Say, J. (1830). A treatise on political economy; or the production, distribution and consumption of wealth (4a ed.). John Grigg.

Cita Chicago Style (17a ed.)

Say, Jean-Baptiste. A Treatise on Political Economy; or the Production, Distribution and Consumption of Wealth. 4a ed. Philadelphia: John Grigg, 1830.

Cita MLA (8a ed.)

Say, Jean-Baptiste. A Treatise on Political Economy; or the Production, Distribution and Consumption of Wealth. 4a ed. John Grigg, 1830.