Ramsey, A. S. (1932). Elementary co-ordinate geometry: A book for beginners. Cambridge University Press.
芝加哥风格引文Ramsey, A. S. Elementary Co-ordinate Geometry: A Book for Beginners. Cambridge: Cambridge University Press, 1932.
MLA引文Ramsey, A. S. Elementary Co-ordinate Geometry: A Book for Beginners. Cambridge University Press, 1932.
警告：这些引文格式不一定是100％准确.