Wittgenstein, Ludwig,  1889-1951. <br/><br/>
Tractus logico-philosophicus / 
Ludwig Wittgenstein. 
 - London :  Routledge & K. Paul,  c1961. 
 - xxii, 166 p. 
 - International library of philosophy and scientific method .
<br/><br/> On title page: "The German text of Ludwigg Wittgenstein,s Logisch-philosophische abhandlung, with a new translation by D. F. Pears & B. F. McGuinness and with the introduction by Bertrand Russell".  Text in English and German. 
<br/><br/><label>ISBN: </label>0710030045 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic, Symbolic and mathematical.<br/>Language and languages--Philosophy.