Reference Base Search Results Search results for References by holden, m.d. back to search page Sort order: ------------------- Date ASC Author normal    Holden, M.D.; Gregory, J.; Watkins, V.; Radford, L., 2006. Operant-conditioning programme for white rhinoceros, black rhinoceros and Indian or greater one-horned Asian rhinoceros Ceratotherium simum, Diceros bicornis and Rhinoceros unicornis at Whipsnade Wild Animal Park, Dunstable, UK. International Zoo Yearbook 40: 144-149, pls. 1-2 File available   details back to search page Sort order: ------------------- Date ASC Author normal