Illinois trees: their diseases Carter, J. Cedric (James Cedric), 1905-1981 creator text book Urbana 1961 1961 2d print, with alterations.
print
ENG Diseases and pests Illinois Trees Circular (Illinois. Natural History Survey Division), 46 https://www.biodiversitylibrary.org/bibliography/53653 1415693 10.5962/bhl.title.53653