University of Illinois Urbana-Champaign

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Thumbnail for Sinkhole distribution and density of Columbia Quadrangle, Monroe and St. Clair Counties, Illinois
Sinkhole distribution and density of Columbia Quadrangle, Monroe and St. Clair Counties, Illinois
Panno, Samuel V.; Angel, Julie C.; Nelson, Dan O.; Weibel, C. Pius; Luman, Donald E.