por Grauer, Robert T, 1945- [autor] | Franco G., Carlos A [traductor] | Crawford, Marshal A, 1943- [autor] | Grauer, Robert T, 1945-. Structured cobol.
por Philippakis, Andreas S [autor] | Sisa, Alberto Jaime | Martinez Paez Jose J [traductor] | Kazmier, Leonard J [autor].