Sierpinski, Waclaw  1882-1969. <br/><br/>
250 problems in elementary number theory/ 
by W. Sierpinski. 
 - New York:  American Elsevier,  1970. 
 - vii, 125 p.:  24 cm. 
 - Modern analytic and computational methods in science and mathematics,  no. 26. .
 - Modern analytic and computational methods in science and mathematics  v. 26. .
<br/><br/>Bibliography: p. 123-124. 
<br/><br/><label>ISBN: </label>0444000712 
<br/><br/><label>LCCN: </label>68017472 //r922 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Number theory---Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>512.7  / S5722