330215 Helfrick, A. D. (1984). Modern aviation electronics. Englewood Cliffs, NJ : Prentice-Hall.
Chicago Style (17th ed.) Citation330215 Helfrick, Albert D. Modern Aviation Electronics. Englewood Cliffs, NJ : Prentice-Hall, 1984.
MLA citiranje330215 Helfrick, Albert D. Modern Aviation Electronics. Englewood Cliffs, NJ : Prentice-Hall, 1984.
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