TY  - GEN
AU  - Williams,Neil H
TI  - Combinatorial set theory
SN  - 0720407222
U1  - 511/.3 
PY  - 1977///
CY  - Amsterdam, New York, New York
PB  - North-Holland Pub. Co, sole distributors for the U.S.A. and Canada, Elsevier/North Holland
KW  - Combinatorial set theory
N1  - Contine bibliografie si  index dupa autori, definitii si notatii
ER  -