TY  - BOOK
AU  - Nikaido Hukukane
AU  -  Sato K
TI  - Introduction to sets and mapping in moden economic
U1  - B316, L0/TD3 
PY  - 1970///
CY  - Amsterdan
PB  - North Holland Publishing Co       
KW  - Analysis
N1  - Bibliography: P 337-38
ER  -