Helfrick lhAlbert D. Modern aviation electronics (2nd ed.). Prentice Hill lc1994.
Chicago Style (17th ed.) CitationHelfrick lhAlbert D. Modern Aviation Electronics. 2nd ed. New Jersey: Prentice Hill lc1994.
MLA (9th ed.) CitationHelfrick lhAlbert D. Modern Aviation Electronics. 2nd ed. Prentice Hill lc1994.
Warning: These citations may not always be 100% accurate.