TY  - MAP
AU  - 
AU  - Duck, J.A.
AU  - Glasgow, L.B.
TI  - Illinois Vienna Quadrangle Surveyed in 1916 in Cooperation with the State of Illinois
U1  - 912.773 
PY  - 1919///
CY  - Washington
PB  - US Geological Survey
KW  - Topographic Map
N2  - Datum is mean sea level; Approximate Mean Declination, 1916
ER  -