Search Results - Spurr, Stephen H., 1918-1990

Aerial photographs in forestry. by Spurr, Stephen H., 1918-1990

Academic degree structures: innovative approaches : principles of reform in degree structures in the United States / by Spurr, Stephen H., 1918-1990

Photogrammetry and photo-interpretation, with a section on applications to forestry. by Spurr, Stephen H., 1918-1990

Forest ecology / by Spurr, Stephen H., 1918-1990

Forest ecology /

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