@inbook {622, title = {Acid Rain and its Impact: The Critical Loads Debate.}, year = {1994}, pages = {43-51}, publisher = {Environmental Change Research Centre/ENSIS}, organization = {Environmental Change Research Centre/ENSIS}, chapter = {Mapping critical loads for the soils of Great Britain}, address = {London}, author = {Hornung, M. and Bull, K.R. and Cresser, M.S. and Loveland, P.J. and Langan, S.J. and Reynolds, B. and Robertson, W.H. and Battarbee, R.W. (Eds)} }