A variance components approach to food grain market integration in Northern Nigeria text Ind Reprint from : American J. of Agric. Econ. 68(4), Nov. 1986 : [970]-979 DELGADO, Christophen L. GRAIN CROPS MARKET PRICES NIGERIA 633.1 INLIS000000000002843 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)