Reference Base Search Results Search results for References by sonne-hansen, r. back to search page Sort order: ------------------- Date ASC Author normal    Sonne-Hansen, R., 1972. Observations on the Sumatran rhino (Dicerorhinus sumatrensis) at Copenhagen Zoo. Zoologische Garten 42 (5/6): 296-303, figs. 1-6 File available   details back to search page Sort order: ------------------- Date ASC Author normal