Wattles, W. D. (1910). The science of getting rich. E. towne.
芝加哥风格引文Wattles, Wallace Delois. The Science of Getting Rich. Holyoke, Mass.: E. towne, 1910.
MLA引文Wattles, Wallace Delois. The Science of Getting Rich. E. towne, 1910.
警告：这些引文格式不一定是100％准确.