Niven, Ivan Morton, 1915- <br/><br/>
Numbers  rational and irrational/ 
by Ivan Niven. 
 - New York:  Randon House,  1961. 
 - viii, 140 p.:  ill diagrs,;   23 cm. 
 - New mathematical library  1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Numbers, Real