Reference Base Search Results Search results for References by virden, r.j. back to search page Sort order: ------------------- Date ASC Author normal    Virden, R.J., 1953. Compound for (Black) rhinos (at San Diego Zoo). Parks & Recreation, American Association of Zoological Parks and Aquariums 36 (5) May : 14, 1 plate File available   details back to search page Sort order: ------------------- Date ASC Author normal