| Title: | On the Economy of Machinery and Manufactures |
| Author: | Babbage, Charles, 1791-1871 |
| Note: | London: J, Murray, 1846 |
| Link: | multiple formats at archive.org |
| Stable link here: | http://onlinebooks.library.upenn.edu/webbin/book/lookupid?key=olbp48412 |
| Subject: | Machinery |
| Subject: | Manufactures |
| Subject: | Taxation |
| Subject: | Income tax |
| Call number: | TJ153 .B34 1846 |