00790cam a2200181 a 450000500170000000800410001703500150005805000240007311100940009724501980019124600200038926000590040930000110046865000370047970000250051670000270054171000400056820260818174313.0080624s1980    us      r     100|0 eng |  a.b1079066400aQA76.9 D3bA18 19802 aACM-Sigmod International Conference on Management of Datad(1980 :cSanta Monica, Calif.)10aProceedings of ACM-SIGMOD 1980 International Conference on Management of Data :bMay 14 - May 16, Miramar-Sheraton Hotel, Santa Monica, California /cedited by Peter P. Chen and R. Clay Sprowls30aACM-SIGMOD 1980  aNew York :bAssociation for Computing Machinery,c1980  a213 p. 0aData base managementvCongresses1 aChen, Peter P.,eed.1 aSprowls, R. Clay,eed.2 aAssociation for Computing Machinery