1. Viète, F. (1646) Opera Mathematica. Edited by Francis van Schooten. Lvgdvni Batavorum: Ex Officinal Bonaventurae & Abrahami Elzeviriorum.
2. Viète, F. (2006) The Analytic Art. Translated by T. Richard Witmer, Dover Publications Inc., New York.
3. Harriot, T. (2003) The Greate Invention of Algebra: Thomas Harriot’s Treatise on Equations. Ed-ited and Translated by Jacqueline Stedall, Oxford University Press, Oxford.
4. Descartes, R. (1954) The Geometry of René Descartes. Edited by David Eugene Smith and Marcia L Latham, Dover Publications, New York.
5. A letter from Mr. John Collins to the Reverend and learned Dr. John Wallis Savilian Professor of geometry in the University of Oxford, giving his thoughts about some defects in algebra