School Mathematics Study Group, <br/><br/>
First Course in Algebra,Part 1  Textual Documents 
School Mathematics Study Group 
 - United States of America:  [s.n].Yale University Press,  1961. 
 - 245p. 
 - Student`s Text,9. .
<br/><br/><label>Subjects--Index Terms: </label>Sets and Subsets,Properties of Addition,Properties of Order