Production Engineering Research Association of Great Britain. (1961). An investigation into the effects of point thinning and drill stiffness on drill performance. The Association.
芝加哥风格引文Production Engineering Research Association of Great Britain. An Investigation into the Effects of Point Thinning and Drill Stiffness on Drill Performance. [Melton Mowbray, Leicestershire]: The Association, 1961.
MLA引文Production Engineering Research Association of Great Britain. An Investigation into the Effects of Point Thinning and Drill Stiffness on Drill Performance. The Association, 1961.
警告：这些引文格式不一定是100％准确.