00554nam a22002057a 4500 SNU 20141226142227.0 141226b xxu||||| |||| 00| 0 eng d ;HCL 005.74 COH ; Cohen,Leo J. Data Base Management Systems. / Leo J Cohen. Massachusetts : QED Information Science, Inc. ,1978. various pages. :26cm. ; Database Management Systems ; DBMS ; Cohen, Leo J. ; HCL. ddc HCL 41027 41027 1 0 ddc 0 0 SNUL SNUL 2014-12-26 0 005.74 COH H14929 2014-12-26 00:00:00 2014-12-26 HCL