Biodiversity Heritage Library
By "Horsfall, William Robert, 1908-"
A synopsis of the mosquitoes of Illinois (Diptera, Culicidae) /
By: Ross, Herbert Holdsworth, - Horsfall, William Robert,
Publication info: Urbana :State of Illinois, Dept. of Registration and Education, Natural History Survey Division,1965.
Holding Institution: University Library, University of Illinois Urbana Champaign