?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A&rft.au=Ratnadass%2C+A&rft.aulast=Ratnadass&rft.issn=1470-160X&rft.date=2011&rft.title=New+ecological+options+for+the+management+of+horticultural+crop+pests+in+Sudano-Sahelian+agroecosystems+of+west+Africa&rft.genre=proceeding