%0 Report %D 2004 %T Bioindicator and biomonitoring methods for assessing the effects of atmospheric nitrogen on statutory nature conservation sites %A Sutton, M.A. %A Pitcairn, C.E.R. %A Leith, I.D. %A van Dijk, N. %A Tang, Y.S. %A Skiba, U. %A Smart, S. %A Mitchell, R. %A Wolseley, P. %A James, P. %A Purvis, W. %A Fowler, D. %E Sutton, M.A. %E Pitcairn, C.E.R. %E Whitfield, C.P. %B JNCC Report No. 356 %C Peterborough %0 Book %B Britain %D 1996 %T Red Data Books of Britain and Ireland: lichens %A Church, J.M. %A Coppins, B.J. %A Gilbert, O.L. %A James, P. %A Stewart, N.F. %B Britain %I Joint Nature Conservation Committee %C Peterborough %V 1 %0 Book %D 1992 %T Lichen Flora of Great Britain and Ireland %A Purvis, O.W. %A Coppins, B.J. %A Hawksworth, D.L. %A James, P. %A Moore, D.M. %I The Natural History Museum %C London %P 710 %0 Book %D 1982 %T Lichens and air pollution %A James, P. %I British Museum/BP Educational Services %C London