Economic of protein improvement programs in the lower income countries text Washington, DC Foriegn Economic Development Service 1971 51 p. ills. ; 24 cm. PROTEIN ASPEK EKONOMI PERKEMBANGAN EKONOMI 612 612 INLIS000000000004165 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)