TY - BOOK ID - 126782534 TI - Productivity trends in a sectoral macro-economic model : a study of American agriculture and supporting industries, 1919-1964 PY - 1972 PB - London: Input-Output Publishing Co., DB - UniCat KW - Agriculture KW - Industrial productivity UR - https://www.unicat.be/uniCat?func=search&query=sysid:126782534 AB - ER -