TY  - BOOK
AU  - ACM SIGMOD International Conference on the Management of Data ( Portland : 1989 )
TI  - Proceedings of the 1989 ACM SIGMOD international conference on the management of data /by James Clifford, Bruce Lindsay & David Maier
T2  - SIGMOD Record
SN  - 0897913175
U1  - 005.74 
PY  - 1989///
CY  - New York
PB  - ACM
ER  -