GERLING HEINRICH. (2006). ALL ABOUT MACHINE TOOLS. NEW AGE INTERNATIONAL PVT. LTD.
芝加哥风格引文GERLING HEINRICH. ALL ABOUT MACHINE TOOLS. NEW DELHI: NEW AGE INTERNATIONAL PVT. LTD, 2006.
MLA引文GERLING HEINRICH. ALL ABOUT MACHINE TOOLS. NEW AGE INTERNATIONAL PVT. LTD, 2006.
警告：这些引文格式不一定是100％准确.