CARVER, D. (1979). Introduction To Business Data Processing With Basic, Fortran, And Cobol Programming D.k.carver. John Willey & Sons.
Lua i Stíl Chicago (17ú heag.)CARVER, D.K. Introduction To Business Data Processing With Basic, Fortran, And Cobol Programming D.k.carver. John Willey & Sons, 1979.
Lua MLA (8ú heag.)CARVER, D.K. Introduction To Business Data Processing With Basic, Fortran, And Cobol Programming D.k.carver. John Willey & Sons, 1979.
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