Roscoe, A., & Lazic, R. (1999). Data independence with predicate symbols. CSREA Press.
Chicago-čujuhus (17. p.)Roscoe, A., juo R. Lazic. Data Independence with Predicate Symbols. CSREA Press, 1999.
MLA-čujuhus (9. p.)Roscoe, A., juo R. Lazic. Data Independence with Predicate Symbols. CSREA Press, 1999.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.