Yates, Robert C.  1904-1963. <br/><br/>
The trisection problem. 

 - Washington, DC:  National Council of Teachers of Mathematics,  [1971]. 
 - xii, 68 p.:  ill.,  24 cm. 
 - Classics in mathematics education;  v. 3. .
 - Classics in mathematics education;  3. .
<br/><br/> "First published in 1942." 
<br/><br/>Bibliography: p. [67]-68. 
<br/><br/><label>LCCN: </label>77176232 //r90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trisection of angle
<br/><br/><label>Dewey Class. No.: </label>516.204