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	revised : August 2007 AgNIC (Agriculture Network Information Center) http://www.agnic.org/ Agricoltura Oggi (Italia) http://www.agricolturaoggi.com/ Agricultural Notebook, The edited by Richard J. Soffe, Blackwell, 20th Ed., Oxford, 2003 Agrisurf (agricultural search engine) http://www.agrisurf.com/ Agri-Ville (Canada) http://www.agri-ville.com/ AgView (agricultural directory) http://www.agview.com/ Ceres Oline http://www.ceresgroup.com/col/index.html Cyberstacks : Agriculture http://www.public.iastate.edu/~CYBERSTACKS/hybro_s.htm Fao (Food and Agriculture Organization) http://www.fao.org/ http://www.fao.org/ag/AGP/agpc/doc/hort/hortic.htm (Horticultural Crops) France Agricole, La http://www.agrionline.com/ Handbook of Soil Science Malcom E. Sumner, editor in chief, CRC Press, Boca Raton, 2000 http://www.chipsbooks.com/hbsoil.htm Horticultural Web, The http://www.horticulture.com/ Horticulture Magazine http://www.hortmag.com/ Infomine (biological, agricultural & medical sciences) http://infomine.ucr.edu/cgi-bin/search?bioag Institute for Agriculture and Trade Policy http://www.iatp.org/ Integrated Plant Protection Center (Oregon State University) http://www.ipmnet.org/ National Agricultural Library (USA) http://www.nal.usda.gov/ Plein Champ (France) http://www.terre-net.fr/ Royal Horticultural Society (United Kingdom) http://www.rhs.org.uk/index.htm Sustainable Agriculture Virtual Library http://www.floridaplants.com/sustainable.htm Terre-net (France) http://www.terre-net.fr/ World Wide Web Virtual Library : Agriculture http://cipm.ncsu.edu/agvl/ Yahoo! Science : Agriculture http://dir.yahoo.com/science/agriculture/