Kieburtz, R. B. (1977). Structured programming and problem solving with PL/1. Prentice-Hall.
Chicago-referens (17:e uppl.)Kieburtz, Richard B. Structured Programming and Problem Solving with PL/1. Englewood Cliffs, N.J.: Prentice-Hall, 1977.
MLA-referens (8:e uppl.)Kieburtz, Richard B. Structured Programming and Problem Solving with PL/1. Prentice-Hall, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.