Dhawan, R. K. (1997). A Textbook of engineering drawing: Geometrical drawing. S. Chand.
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芝加哥风格引文
Dhawan, R. K. A Textbook of Engineering Drawing: Geometrical Drawing. New Delhi: S. Chand, 1997.
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MLA引文
Dhawan, R. K. A Textbook of Engineering Drawing: Geometrical Drawing. S. Chand, 1997.
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警告：这些引文格式不一定是100％准确.