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Behavior and ecology of the northern fur seal
Roger L. Gentry
Bok Engelsk 1998
Fur seals : maternal strategies on land and at sea
edited by Roger L. Gentry and Gerald L. K...
Bok Språk ikke angitt 1986
Northern fur seal diving behavior : a new approach to its study
Kooyman, Gerald L.
Bok Språk ikke angitt 1976