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Robert Sumner Sigafoos

5 cilt bulundu.

Cilt sonuçları

Forest influencesBotanical evidence of floods and flood-plain depositionRobert Sumner Sigafoos

Botanical evidence of floods and flood-plain deposition

Robert Sumner Sigafoos · U.S. Govt. Print. Off.

35 sayfa · 1964

Floods / Forest influences

PlantsBotanical evidence of the modern history of Nisqually Glacier, WashingtonRobert Sumner Sigafoos

Botanical evidence of the modern history of Nisqually Glacier, Washington

Robert Sumner Sigafoos · U.S. Govt. Print. Off.

20 sayfa · 1961

Plants

MorainesRecent activity of glaciers of Mount Rainier, WashingtonRobert Sumner Sigafoos

Recent activity of glaciers of Mount Rainier, Washington

Robert Sumner Sigafoos · U.S. Govt. Print. Off.

24 sayfa · 1973

Glaciers / Moraines

Vegetation mappingVegetation of northwestern North America, as an aid in interpretation of geologic dataRobert Sumner Sigafoos

Vegetation of northwestern North America, as an aid in interpretation of geologic data

Robert Sumner Sigafoos · U.S. G.P.O.

185 sayfa · 1958

Botany / Phytogeography / Plant ecology / Trees / Vegetation mapping

CiltPost-Wisconsin forest migration in North-western Montana, Central Alberta and the Athabaska and Great Slave Lake RegionsRobert Sumner Sigafoos

Post-Wisconsin forest migration in North-western Montana, Central Alberta and the Athabaska and Great Slave Lake Regions

Robert Sumner Sigafoos · Yayınevi bilinmiyor

10 sayfa · 1950

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