Dubnov, IÃkov Semenovich,  1887-1957. <br/><br/>
Mistakes in geometric proofs / 
IÃkov Semenovich Mistakes Transla ted and adapted from the 2d Russian ed. (1955) by Alfred K. Henn and Ol ga A. Titelbaum. 
 - Boston :  Heath,  1963. 
 - 57 p. :  ill. ;  21 cm. 
 - Topics in mathematics. .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry--Problems, exercises, etc.<br/>Fallacies (Logic)
<br/><br/><label>Dewey Class. No.: </label>513.9