Braunfeld, Peter G. <br/><br/>
Stretchers and shrinkers :  Book 1, the theory of stretching machines, book 2-Advanced topics in stretching and shrinking. Book-3 the theory of fractions / 
Peter G. Braunfeld 
 - New York  Harper & Row Publishers  1969 
 - 159 p. 
<br/><br/>Percent (Page-1), Fraction Machines (Page-22), Multiplying by a Fraction (Page-61), Dividing by a Fraction (Page-87), Adding and Subtracting fractions (Page-108), Mixed Numbers (Page-137), percent Revisited (Page-155).  
<br/><br/><label>LCCN: </label>258709 
<br/><br/><label>Subjects--Corporate Names: </label>--Mathematics
<br/><br/><label>Dewey Class. No.: </label>510,BRA