Ulliman, Joseph J.Meyer, Merle P.2010-02-152010-02-151968-01-15Ulliman, J.J and Meyer, M.P., (1968), "An Index to Aerial Photography in Minnesota", Minnesota Forestry Research Notes 186, School of Forestry, University of Minnesota0544-3555https://hdl.handle.net/11299/57799Published as Scientific Journal Paper Series No. 6429 of the Minnesota Agricultural Experiment Station.en-USforests and forestryMinnesotaresearchReport