APA (7th ed.) Citation

Thureau-Dangin, F. (1939). Sketch of a History of the Sexagesimal System.

Chicago Style (17th ed.) Citation

Thureau-Dangin, Fr. Sketch of a History of the Sexagesimal System. 1939.

MLA (8th ed.) Citation

Thureau-Dangin, Fr. Sketch of a History of the Sexagesimal System. 1939.

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