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Steven Jeffries

4 cilt bulundu.

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Twice Blessed

Steven Jeffries · Bookstand Publishing

98 sayfa · 2013

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Estuarine ecologyMarine mammals of the Columbia River EstuarySteven Jeffries

Marine mammals of the Columbia River Estuary

Steven Jeffries · CREST

62 sayfa · 1984

Mathematical models / Mammal populations / Marine mammals / Estuarine ecology

Harbor sealSeasonal movements and population trends of harbor sealsSteven J. Jeffries

Seasonal movements and population trends of harbor seals

Steven J. Jeffries · National Technical Information Service [distributor]

41 sayfa · 1986

Harbor seal

Harbor sealPopulation status and condition of the harbor seal, Phoca vitulina richardsi, in the waters of the state of Washington: 1975-1980Steven J. Jeffries

Population status and condition of the harbor seal, Phoca vitulina richardsi, in the waters of the state of Washington: 1975-1980

Steven J. Jeffries · U.S. Marine Mammal Commission

70 sayfa · 1990

Harbor seal