University of Guyana Library catalog › Results of search for 'au:Graf, W.'

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	1.	Plecoptera by Graf, W. Publication: Sofia : Pensoft, 2009 . 1 online resource (262 p.) : Date:2009 Availability: No items available: Actions: Add to cart (remove)
	2.	Distribution and ecological preferences of European freshwater organisms. Publication: Sofia : Pensoft, 2008 . 1 online resource (388 p.) : Date:2008 Availability: No items available: Actions: Add to cart (remove)

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