BRADLEY, J. (1988). Business File Processing ! Cobol, Cics And Sql James Bradley. Mitchell.
Lua i Stíl Chicago (17ú heag.)BRADLEY, James. Business File Processing ! Cobol, Cics And Sql James Bradley. Mitchell, 1988.
Lua MLA (8ú heag.)BRADLEY, James. Business File Processing ! Cobol, Cics And Sql James Bradley. Mitchell, 1988.
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