Frenzel, L. E. (2008). Principles of electronic communication systems. Boston, [Mass.]: McGraw-Hill Higher Education.
Παραπομπή Chicago StyleFrenzel, Louis E. Principles of Electronic Communication Systems. Boston, [Mass.]: McGraw-Hill Higher Education, 2008.
Παραπομπή MLAFrenzel, Louis E. Principles of Electronic Communication Systems. Boston, [Mass.]: McGraw-Hill Higher Education, 2008.
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