APA (7th ed.) Citation

Powell, M. A. J. (1972). The Origin of the Sexagesimal System: The Interaction of Language and Writing.

Chicago Style (17th ed.) Citation

Powell, Marvin A. Jr. The Origin of the Sexagesimal System: The Interaction of Language and Writing. 1972.

MLA (8th ed.) Citation

Powell, Marvin A. Jr. The Origin of the Sexagesimal System: The Interaction of Language and Writing. 1972.

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