Beesley, T. E. , W. J. Moran, M M. Kupper, W. S. Gillam, T. K. Popov, Boris Bulatkin, and W. C. Bourne books & textbook
SOIL SURVEY OF LANCASTER COUNTY, NEBRASKA
United States Government Printing Office /1948T Paperback
United States Government Printing Office /1948T Paperback