张云杰 & 沈芳. (2013). AutoCAD 2012中文版从入门到精通. 清华大学出版社.
Chicago Style (17th ed.) Citation张云杰 and 沈芳. AutoCAD 2012中文版从入门到精通. 清华大学出版社, 2013.
MLA (8th ed.) Citation张云杰 and 沈芳. AutoCAD 2012中文版从入门到精通. 清华大学出版社, 2013.
Warning: These citations may not always be 100% accurate.