Reference Base Search Results Search results for References by sommerfelt, b. back to search page Sort order: ------------------- Date ASC Author normal    Olney, P.J.S.; Ellis, P.; Sommerfelt, B., 1988. Mammals bred in captivity and multiple generation births in 1985. International Zoo Yearbook 27: 423 File available   details Olney, P.J.S.; Ellis, P.; Sommerfelt, B., 1988. Census of rare animals in captivity in 1986. International Zoo Yearbook 27: 471-472 File available   details back to search page Sort order: ------------------- Date ASC Author normal