TY  - BOOK
AU  - Leung,Kam-tim
AU  - Chen,Doris Lai-chue
AU  - Wong,Yung-Chow
TI  - Elementary set theory 1
PY  - 1965///
CY  - London : 
PB  - Hong Kong University Press, 
KW  - Calculo
KW  - Sistemas
KW  - Conjuntos
ER  -