Anderson, A ., E. Durbin, T. Kemp, S. Lauer, and E. Tramer. 2002. Birds of the Toledo Area
Brewer, Lawrence G.; Vankat, John L. Description of vegetation of the Oak Openings of northwestern Ohio at the time of Euro-American settlement (1). The Ohio Journal of Science, September 01, 2004
Brewer, Lawrence G; Vankat, John L. Richness and Diversity of Oak Savanna in Northwestern Ohio: Proximity to Possible Sources of Propagules. The American Midland Naturalist; Jan 1, 2006
Campbell, Louis. 1946 The Oak openings of northwestern Ohio
Campbell, Louis, Claire Gavin, and Harold Mayfield. 1994. Marshes Of S.W. Lake Erie
Mayfield, Harold. 1969. Changes in the natural history of the Toledo region since the coming of the white man. pamphlet
Moseley, Edwin. 1928. Flora of the Oak Openings
Sears, Paul B. 1926. The Natural Vegetation of Ohio II. The Prairies The Ohio Journal of Science, v. 26, no. 3 (May, 1926), pp. 128-146.
Transeau, Edgar Nelson. 1935. The Prairie Peninsula. Ecology. 16(3): 423-437. 
Gordon 1966, 1969
The following are available from the Ohio Biological survey.
Edwin Lincoln Moseley (1865-1948): Naturalist, Scientist, Educator by Relda E. Niederhofer and Ronald L.Stuckey, 292 p. 1998
The Vegetation of the Oak Openings of North Western Ohio at the Time of Euro-American Settlement [36” x 46.5” plotted map] by Lawrence G. Brewer and John L. Vakat, 2001
The Natural Vegetation of Ohio in Pioneer Days by Robert B. Gordon 1969 (Reprint 2005) Associated Vegetation Map (Reprint 2005) (35" x 38")