Watkinson , J. (2004). The art of the helicopter. Elsevier.
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芝加哥风格引文
Watkinson , John. The Art of the Helicopter. New York: Elsevier, 2004.
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MLA引文
Watkinson , John. The Art of the Helicopter. Elsevier, 2004.
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警告：这些引文格式不一定是100％准确.