Fletcher, W. I. (1997). An engineering approach to digital design (5th ed.). Prentice Hall.
Chicago-viite (17. p.)Fletcher, William I. An Engineering Approach to Digital Design. 5th ed. New Delh: Prentice Hall, 1997.
MLA-viite (9. p.)Fletcher, William I. An Engineering Approach to Digital Design. 5th ed. Prentice Hall, 1997.
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