Schumacher, Carol <br/><br/>
Chapter zero : fundamental notions of abstract mathematics 
Carol Schumacher 
 - 
 - New York  Addison -Wesley Pulishing Company  c1977. 
 - 162 p. : 
<br/><br/><label>ISBN: </label>0201826534 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--ME
<br/><br/><label>Dewey Class. No.: </label>511.3 SCH