R.P. Wheeler .Farm Wastes. The Public Health Engineer Vol. No. 7, Jan. 1974 P.5.
2.
Fertilizer Manufacturers Association1975.
3.
Report of the Energy Working Party. Joint Consultative Organization for Research and Development in Agriculture and Food. Dec. 1974 p.11.
4.
Farm Waste Management General Information. Agricultural Development Advisory Service, MAFF. Short Term Leaflet 67 1977 p.12.
5.
A.P. Laursen-Jones.Health Aspects in Recycling of Manure Poultry Manure Conference, Stoke Mandeville. October1973 Table II.
6.
Idem. Table I.
7.
Idem. Table III.
8.
After Jones & Riley Farm Wastes. Proceedings and Symposium, The Institute of Water Pollution Control and the University of Newcastle Upon Tyne1970. p.9.
9.
R.P. Wheeler .The Practice of Water Quality Management. The Public Health Engineer Vol. 5 No. 4 Sept. 1977 p.130.
10.
Farm Waste Warnings and Prosecutions1977. ADAS Farm Waste Unit. Private Communications.
11.
K.G. Gostick and W. Dermott.Agricultural Aspects of Nitrates in Water . Water Treatment and Examination Vol. 24 Part 3. 1975. p. 208.
12.
Fertiliser Manufacturers Association.Fertiliser Statistics 1976 Table II.
13.
C.P. Young, E.S. Hall and D.B. Oakes.Nitrate in Groundwater — Studies on the Chalk near Winchester, Hampshire Water Research Centre1976. p.7.
14.
W.B. Wilkinson .The Nitrate problem and groundwater. Water. November 1976 p.14.
15.
K. Mellanby.Can Britain Feed Itself? Merlin Press1975. p.4.
16.
Halmarl Farm Waste Treatment Leaflet.
17.
Farm Waste Management. Short Term Leaflets 67, 87, 171, 172 and 185. Agricultural Development Advisory Service, MAFF. 1976-1978.
18.
Short Term Leaflet 171. Profitable Utilisation of Livestock Manure, ADAS. 1977 p.4.
