TY - GEN digital ID - 139567666 TI - On the economy of machinery and manufactures AU - Babbage, Charles AU - Gale Cengage Learning PY - 1832 PB - London C. Knight DB - UniCat KW - Machinery -- Economic aspects KW - Industrialists UR - https://www.unicat.be/uniCat?func=search&query=sysid:139567666 AB - ER -