Graul, Walter D.2017-04-062017-04-061973https://hdl.handle.net/11299/185459Links to online photos, slides, and drawings by Walter D. Graul in support of his 1973 PhD dissertation "Breeding adaptations of the mountain plover : (Charadrius montanus)", University of Minnesota. The full text of the dissertation is available at http://hdl.handle.net/11299/169795enImage