Arnold, H.R. (1995) Atlas Of Amphibians And Reptiles In Britain. HMSO, London.

Jermy, A.C., Arnold, H.R., Farrell, L. & Perring, F.H. (1978) Atlas Of Ferns Of The British Isles. Botanical Society of the British Isles and British Pteridological Society, London.

Arnold, H.R. (1993) Atlas Of Mammals In Britain. HMSO, London.

Preston, C.D. & Arnold, H.R. (2006) The Mediterranean-Atlantic and Atlantic elements in the Cornish flora. In: Botanical links in the Atlantic arc, eds. S.J. Leach, C.N. Page, Y. Peytoureau and M.N., 2424th ed. pp. 41-57. BSBI Conference Report, Sanford.

Hill, M.O., Arnold, H.R., Broad, G.R., Brown, P.M.J., James, T.J., McLean, I.F.G., Preston, C.D., Rowland, F. & Roy, D.B. (2006) Biological Records Centre Annual Report 2005-2006. Joint Nature Conservation Committee, Peterborough.

Hill, M.O., Arnold, H.R., Broad, G.R., Burton, V., James, T.J., McLean, I.F.G., Preston, C.D., Rowland, F. & Roy, D.B. (2005) Biological Records Centre: Report 1999-2004. JNCC.