Willman, H. B. (1963). Mineralogy of glacial tills and their weathering profiles in Illinois. [publisher not identified].
Chicago Style (17th ed.) CitationWillman, H. B. Mineralogy of Glacial Tills and Their Weathering Profiles in Illinois. Urbana: [publisher not identified], 1963.
MLA (9th ed.) CitationWillman, H. B. Mineralogy of Glacial Tills and Their Weathering Profiles in Illinois. [publisher not identified], 1963.
Warning: These citations may not always be 100% accurate.