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Introduction and background:

Falck-Zepeda, José Benjamin ; Gruère, Guillaume P ; Sithole-Niang, Idah.
Full Book: http://ebrary.ifpri.org/cdm/ref/collection/p15738coll2/id/127816 Chapter files: http://ebrary.ifpri.org/cdm/search/collection/p15738coll2/searchterm/Genetically%20modified%20crops%20in%20Africa/field/source/mode/exact/conn/and/order/date.  , 2013