@book{ Solr-154514, title = {Differential and integral : a constructive introduction to classical analysis / (by) Paul Lorenzen ; translated (from the German) by John Bacon.}, author = {Lorenzen, Paul}, editor = {Bacon, John}, address = {Austin ; London}, publisher = {University of Texas Press}, year = {1971}, note = {Translation of 'Differential und Integral'. Frankfurt am Main, Akademische Verlagsgesellschaft, 1965}, }