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#		Title	Year	Author	SuDoc Number	Internet Access
1		Method 549.2 [electronic resource] : determination of diquat and paraquat in drinking water by liquid-solid extraction and high performance liquid chromatography with ultraviolet detection /	1997	Hodgeson, J.W.	EP 11.2:D 62	http://purl.access.gpo.gov/GPO/LPS68258

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