Kaspar, I. I., & Enyart, J. I. (2000). Concrete pipe for the new millennium. ASTM.
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芝加哥风格引文
Kaspar, Iraj I., 与 Jeffrey I. Enyart. Concrete Pipe for the New Millennium. West Conshohocken, PA: ASTM, 2000.
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MLA引文
Kaspar, Iraj I., 与 Jeffrey I. Enyart. Concrete Pipe for the New Millennium. ASTM, 2000.
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警告：这些引文格式不一定是100％准确.