张云杰 & 杨俊. (2011). AutoCAD 2011中文版从入门到精通. 电子工业出版社.
Chicago Style (17th ed.) Citation张云杰 and 杨俊. AutoCAD 2011中文版从入门到精通. 电子工业出版社, 2011.
MLA (8th ed.) Citation张云杰 and 杨俊. AutoCAD 2011中文版从入门到精通. 电子工业出版社, 2011.
Warning: These citations may not always be 100% accurate.