Lua APA (7ú heag.)
Fletcher, W. I. (1980). An engineering approach to digital design. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)
Fletcher, William I. An Engineering Approach to Digital Design. Englewood Cliffs, N.J. ; New Delhi: Prentice-Hall, 1980.
Lua MLA (9ú heag.)
Fletcher, William I. An Engineering Approach to Digital Design. Prentice-Hall, 1980.
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