Kieburtz, R. B. (1977). Structured programming and problem solving with PL/1. Prentice-Hall.
Chicago-viite (17. p.)Kieburtz, Richard B. Structured Programming and Problem Solving with PL/1. Englewood Cliffs, N.J.: Prentice-Hall, 1977.
MLA-viite (8. p.)Kieburtz, Richard B. Structured Programming and Problem Solving with PL/1. Prentice-Hall, 1977.
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