Etter, D. M. (1984). Problem solving with structured FORTRAN 77. The Benjamin/Cummings Pub Co.
Lua i Stíl Chicago (17ú heag.)Etter, D. M. Problem Solving with Structured FORTRAN 77. Menlo Park, Calif: The Benjamin/Cummings Pub Co, 1984.
Lua MLA (9ú heag.)Etter, D. M. Problem Solving with Structured FORTRAN 77. The Benjamin/Cummings Pub Co, 1984.
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