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  1. Population status of California sea otters / edited by D.B. Siniff and K. Ralls.
    By: Ralls, Katherine - Siniff, D.B. - United States.
    Publication info: Los Angeles, Calif. :U.S. Dept. of the Interior, Minerals Management Service, Pacific OCS Region,[1988]
    Contributed by: Smithsonian Libraries
    BHL Collections: Smithsonian Libraries
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  1. The Plight of the 'Forgotten' Whales
    By: Brownwell, Robert L - Ralls, Katherine - Perrin, William F
    Type: Article
    In: Oceanus
    Volume: 32
    Date: 1989
    Page Range: 5--13
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