| * Duffield, H. (2008) An approach to the dull donkey In Svendsen, E.D., Duncan, J. and Hadrill, D. (2008) ''The Professional Handbook of the Donkey'', 4th edition, Whittet Books, Chapter 2 | | * Duffield, H. (2008) An approach to the dull donkey In Svendsen, E.D., Duncan, J. and Hadrill, D. (2008) ''The Professional Handbook of the Donkey'', 4th edition, Whittet Books, Chapter 2 |
| * Cox, R., Proudman, C., Burden, F., Trawford, A., Gosden, L., and Pinchbeck, G. (2007). ‘A case control study to investigate risk factors for impaction colic in UK donkeys’. ''Proceedings of British Equine Veterinary Association Congress 2007''. | | * Cox, R., Proudman, C., Burden, F., Trawford, A., Gosden, L., and Pinchbeck, G. (2007). ‘A case control study to investigate risk factors for impaction colic in UK donkeys’. ''Proceedings of British Equine Veterinary Association Congress 2007''. |
− | * Duffield, H.F., Bell, N., and Henson, M.D. (2002). ''The 7th International Equine Colic Research Symposium Handbook''. p 122. Manchester, 14-16 July 2002.{{toplink | + | * Duffield, H.F., Bell, N., and Henson, M.D. (2002). ''The 7th International Equine Colic Research Symposium Handbook''. p 122. Manchester, 14-16 July 2002. |