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Paul R. Shaffer

b. 1910 ยท 3 books

Books by Paul R. Shaffer

Farmdale drift in northwestern Illinois
Farmdale drift in northwestern Illinois
1956
Extension of Tazewell glacial substage of western Illinois and eastern Iowa
Extension of Tazewell glacial substage of western Illinois and eastern Iowa
1954
Shore erosion on Sandusky Bay
Shore erosion on Sandusky Bay
1951