Spreckelmeyer, Richard L. <br/><br/>
The complex numbers 
by Richard Spreckelmeyer. 
 - Boston  Heath  [1965] 
 - ix, 49 p.  illus.  21 cm. 
 - Thinking with mathematics .
<br/><br/>Bibliography: p. 49. 
<br/><br/><label>LCCN: </label>63015131  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Numbers, Complex.
<br/><br/><label>LC Class. No.: </label>QA255  / .S6