Roy, R. (2011). Sources in the development of mathematics: Infinite series and products from the fifteenth to the twenty-first century. Cambridge University Press.

Roy, Ranjan. Sources in the Development of Mathematics: Infinite Series and Products from the Fifteenth to the Twenty-first Century. Cambridge ; New York: Cambridge University Press, 2011.

Roy, Ranjan. Sources in the Development of Mathematics: Infinite Series and Products from the Fifteenth to the Twenty-first Century. Cambridge University Press, 2011.