Nikaido, Hukukane,  1923- <br/><br/>
Introduction to sets and mappings in modern economics / 
Translated by Kazuo Sato. 
 - Amsterdam :  North-Holland Publishing Company,  1970. 
 - xiii, 343 p. ;  23 cm. 
<br/><br/> Translation of Gendai keizaigaku no sugakuteki hoho. 
<br/><br/>p. 335-338. 
<br/><br/><br/>engjpn. 
<br/><br/><label>ISBN: </label>0720430437 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Economics, Mathematical.