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

@book{Thompson1914,
abstract = {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},
author = {Thompson, Silvanus P},
title = {Calculus Made Easy},
url = {http://www.gutenberg.org/ebooks/33283},
year = 1914,
urldate = {2012-04-26}
}