Rich, T. P., & Del Testa, D. W. (2013). Water-powered gristmills of Union County, Pennsylvania. Lewisburg, Union County, Pennsylvania: Union County Historical Society.
Chicago Style CitationRich, Thomas P., and David W. Del Testa. Water-powered Gristmills of Union County, Pennsylvania. Lewisburg, Union County, Pennsylvania: Union County Historical Society, 2013.
MLA CitationRich, Thomas P., and David W. Del Testa. Water-powered Gristmills of Union County, Pennsylvania. Lewisburg, Union County, Pennsylvania: Union County Historical Society, 2013.