Meyer, M.P., (1964), "A Forest Aerial Photo Scale for Minnesota Conditions", Minnesota Forestry Notes 143, School of Forestry, University of Minnesota
Minnesota Forestry Notes
Published as Miscellaneous Journal Paper Series No. 1175 of the Minnesota Agricultural Experiment Station.
A Forest Aerial Photo Scale for Minnesota Conditions.
St. Paul, Minn. : School of Forestry, University of Minnesota.
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