by Gameson, Arthur Lawrence Hugh.
by Bowie, George L.
-- United StatesEnvironmental Protection Agency;
Environmental Research Laboratory (Athens, Ga)
by Donnison, A.M;
-- Meat Industry Research Institute of New Zealand
by -- New Zealand Ministry of Health
by Hamill, K. D.
-- Southland (N.Z.) Regional Council
by Davis, J.C.A;
-- Water Quality Centre (Hamilton, N.Z.)
by Davis, J.C.A.
by Pyle, B.H;
by -- New Zealand National Drinking-Water Standards Review Expert Working Group.
by -- Steven & Fitzmaurice;
Napier (N.Z.). City Council
by Davis, K.R.
-- Wellington (N.Z. : Region) Regional Council
by -- New Zealand Committee for Water Pollution Research;
National Water and Soil Conservation Organisation (N.Z.);
New Zealand-United States Educational Foundation;
Massey UniversityDepartment of Biotechnology. -- (7th : Massey Biotechnology Conference 1975 : Massey University).
by Currie, K.J. (Manawatu Catchment Board and Regional Water Board);
Gilliland, B.W. (Manawatu Catchment Board and Regional Water Board).
by Van Roon, Marjorie.
by Parkes, W.F;
by Ingley, Rhian.