Pooley, E. and Revzin, P. (2011) World Feeding Itself Spurs Search for Answers. Retrieved from: http://www.bloomberg.com/news/2011-02-17/world-feeding-itself-spurs-search-for-answers-eric-pooley-and-phil-revzin.html
Is there a shortage and have supplies dropped according to FAO of the UN (2008) http://www.opednews.com/populum/ftp://ftp.fao.org/agl/agll/docs/cwfto11.pdf
Steward, S. and Waldie, P. (2008) "U.S. food producers, speculators square off", Globe and Mail , Toronto, 23 April 2008,
Steward, S. and Waldie,P. (2008a) "Why grocery prices are set to soar", Globe and Mail , Toronto, 24 April 2008a,
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