APA (7th ed.) Citation

Gras, G., & Gras, M. Algebre fondamental arithmetique.

Chicago Style (17th ed.) Citation

Gras, George, and Marie-Nicole Gras. Algebre Fondamental Arithmetique. Paris.

MLA (8th ed.) Citation

Gras, George, and Marie-Nicole Gras. Algebre Fondamental Arithmetique.

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