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	1.	No cover image available Heavy metals in the New Zealand aquatic environment : a review by Smith, D.G. (David Glynn); Williamson, R. B. (Ronald Bruce). -- New ZealandWater and Soil Directorate.; New ZealandNational Water and Soil Conservation Authority. Source: Water & soil miscellaneous publication / Publisher: Wellington, N.Z. : Published for the National Water and Soil Conservation Authority by the Water and Soil Directorate, Ministry of Works and Development, 1986Online Access: Click here to access online Availability: No items available Add to cart (remove)
	2.	The effects of riparian protection on channel form and stability of 6 grazed streams, Southland, New Zealand by Williamson, R. B. (Ronald Bruce); Smith, R. Keith; Quinn, John Martin. -- Water Quality Centre (Hamilton, N.Z.) Source: Water Quality Centre publication. Publisher: Hamilton, N.Z. : Water Quality Centre, DSIR Marine and Freshwater, [1990]Online Access: Click here to access online Availability: No items available Add to cart (remove)

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