@misc{187f0e0d615941329581ca8490dab50b,
title = "Surficial Geology of Willisville Quadrangle, Perry, Randolph, and Jackson Counties, Illinois",
abstract = "One 35{"} x 30{"} map sheet which contains map and legends. A 2-page report detailing stratigraphy and bedrock topography accompanies the map.",
keywords = "ISGS",
author = "Nelson, {W. John}",
note = "Citation: Nelson, W.J., 2022, Surficial geology of Willisville Quadrangle, Perry, Randolph, and Jackson Counties, Illinois: Illinois State Geological Survey, Illinois Geologic Quadrangle Map, IGQ Willisville-SG, 1 sheet, 1:24,000, report, 2 p.",
year = "2022",
language = "English (US)",
publisher = "Illinois State Geological Survey",
address = "United States",
}