Helfrick, A. D. (2010). Principles of avionics (6th ed.). Avionics Communications, Inc..
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芝加哥风格引文
Helfrick, Albert D. Principles of Avionics. 6th ed. Leesburg, VA: Avionics Communications, Inc., 2010.
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MLA引文
Helfrick, Albert D. Principles of Avionics. 6th ed. Avionics Communications, Inc., 2010.
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警告：这些引文格式不一定是100％准确.