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2.

Chicago, Ill. university-of-illinois-urbana-champaign

1931. Chapman, Henry T., Houghton Mifflin Company, Tudor Press, Boston, MA., and Turzak, Charles. Designed by Charles Turzak and Henry T. Chapman; Turzak, Charles;Chapman, Henry T.; The Tudor Press, 1931.; 4104.C6A3 1931 .T8;Houghton Mifflin Com...

5.

Illinois, Meredosia quadrangle university-of-illinois-urbana-champaign

1931. Geological Survey (U.S.). Contour interval 20 feet.;"Surveyed in 1926, 1927, and 1928";Relief shown by contours and spot heights.;1 map, colored;45 x 35 cm.;1:62,500.

6.

Illinois-Missouri, Barry quadrangle university-of-illinois-urbana-champaign

1931. Geological Survey (U.S.). Surveyed in 1921-1922 and 1928.;Relief shown by contours and spot heights.;Road classification, 1931.;1 map, colored;45 x 35 cm.;1:62,500.

7.

Missouri-Illinois, Brussels quadrangle university-of-illinois-urbana-champaign

1931. Geological Survey (U.S.). Surveyed in 1927.;Relief shown by contours and spot heights.;Road classification, 1930.;1 map, colored;45 x 35 cm.;1:62,500.