Cita APA (7th ed.)
Marx, K., & Aveling, E. M. (2001). Value, price, and profit: Addressed to working men. Electric Book Co..
Cita Chicago (17th ed.)
Marx, Karl, i Eleanor Marx Aveling. Value, Price, and Profit: Addressed to Working Men. London: Electric Book Co., 2001.
Cita MLA (9th ed.)
Marx, Karl, i Eleanor Marx Aveling. Value, Price, and Profit: Addressed to Working Men. Electric Book Co., 2001.
Atenció: Aquestes cites poden no estar 100% correctes.