APA (7th ed.) Citation

Thompson, S. P. (2011). Calculus made easy: Being a very-simplest introduction to those beautiful methods of reckoning which are generally called by the terrifying names of the differential calculus and the integral calculus. Really Simple Media.

Chicago Style (17th ed.) Citation

Thompson, Silvanus P. Calculus Made Easy: Being a Very-simplest Introduction to Those Beautiful Methods of Reckoning Which Are Generally Called by the Terrifying Names of the Differential Calculus and the Integral Calculus. London: Really Simple Media, 2011.

MLA (9th ed.) Citation

Thompson, Silvanus P. Calculus Made Easy: Being a Very-simplest Introduction to Those Beautiful Methods of Reckoning Which Are Generally Called by the Terrifying Names of the Differential Calculus and the Integral Calculus. Really Simple Media, 2011.

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