TY  - BOOK
AU  - Dalen, D. Van.
AU  - Doets, H. C.
AU  - Deswart, H.
TI  - Sets: naive, axiomatic and applied
T2  - International Series in Pure and Applied Mathematics
SN  - 0080211666
U1  - 511.32 
PY  - 1978///
CY  - Oxford
PB  - Pergamon Press
ER  -