A COBOL bookof practice and referencede Robert T. GrauerMateriasCOBOL (Computer program language)Cobol (computer program language)Ediciones (2)A COBOL book of practice and reference (1981)Prentice-Hall · inglésA COBOL bookof practice and reference (1981)Prentice-Hall · inglésMás obras de Robert T. GrauerDDatabase management through dBaseDatabase management through dBase