TY - BOOK ID - 135463539 TI - Fertilizer use and maize production in Sub-Saharan Africa AU - Heisey, Paul W. AU - Mwangi, Wilfred PY - 1996 PB - Mexico International maize and wheat improvement center DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:135463539 AB - ER -