text Washington D.C., USA Worldwatch Institute 1986 46 p. : ills. ; 22 cm. Edward C. Wolf AGRICULTURE GREEN REVOLUTION 633 WOL b INLIS000000000003537 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)