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	1.	No cover image available Diurnal, daily, and seasonal variations of nutrients in Rotorua city sewage effluent by Cooke, J.G. -- Water Quality Centre (Hamilton, N.Z.) Source: Internal report / Water Quality Centre, Hamilton. Publisher: Hamilton, N.Z. : The Centre, 1978Availability: No items available Add to cart (remove)
	2.	No cover image available The effect of digestion time on recovery of Kjeldahl nitrogen by Cooke, J.G. -- Water Quality Centre (Hamilton, N.Z.) Source: Internal report / Water Quality Centre, Hamilton. Publisher: Hamilton, N.Z. : The Centre, 1978Availability: No items available Add to cart (remove)

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