APA (7th ed.) Citation

Powell, M. A. (1977). Sumerian Merchants and the Problem of Profit.

Chicago Style (17th ed.) Citation

Powell, Marvin A. Sumerian Merchants and the Problem of Profit. 1977.

MLA (8th ed.) Citation

Powell, Marvin A. Sumerian Merchants and the Problem of Profit. 1977.

Warning: These citations may not always be 100% accurate.