TY - BOOK ID - 135015955 TI - Agricultural systems in Ethiopia AU - Westphal, E. AU - Westphal-Stevels, J. M. C. PY - 1975 SN - 9022005569 PB - Wageningen Centre for agricultural publishing and documentation DB - UniCat KW - Agricultural systems UR - https://www.unicat.be/uniCat?func=search&query=sysid:135015955 AB - ER -