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Article
I. Hawes ; R.D.S. Wells ; J.S. Clayton ; C. Howard-williams | [S.l.] : Water Net Technical Committee Taupo | 1991Water Net Technical Committee Taupo (NZL) 64p
Article
C. Howard-williams ; J. Davies ; W.F. Vincent 1986New Zeal J Mar Freshwater Res 20 p55-65
Article
C. Howard-williams ; T.G. Longman January 1, 1976Journal of the Limnological Society of Southern Africa, 2(1)A simple rotary sampler, capable of quantitatively harvesting submerged aquatic macrophytes is described. The sampler can be operated from a boat and consists of a central rod with a specially designed cutting blade at the base, and collecting h[...]
