1. Survey of fertiliser practice: fertiliser use on farm crops in England and Wales;ADAS;Agricultural Development and Advisory Service Report No. SS/CH/11,1982
2. Changes in magnesium and calcium in soils of the Broadbalk wheat experiment at Rothamsted from 1865 to 1966;Bolton;J. Agric. Sci. Camb.,1972
3. Soil pollution;Bowen;Educ. Chem.,1975
4. Trace and major elements in the atmosphere at rural locations in Gt. Britain, 1972–1981;Cawse,1986
5. Cadmium sorption onto two mineral soils;Christensen,1980