Prem, N. (1958). Mathematical for students of Economics. Sultan Chand & Co.
芝加哥风格引文Prem, Narain. Mathematical for Students of Economics. NULL: Sultan Chand & Co, 1958.
MLA引文Prem, Narain. Mathematical for Students of Economics. Sultan Chand & Co, 1958.
警告：这些引文格式不一定是100％准确.