Frey, D. (2004). AutoCAD 2005 and AutoCAD LT 2005: No experience required. Sybex.
芝加哥风格引文Frey, David. AutoCAD 2005 and AutoCAD LT 2005: No Experience Required. San Francisco: Sybex, 2004.
MLA引文Frey, David. AutoCAD 2005 and AutoCAD LT 2005: No Experience Required. Sybex, 2004.
警告：这些引文格式不一定是100％准确.