A peculiar oolite from Bethlehem, PennsylvaniaDOI: info:10.5479/si.00963801.49-2102.153v. 49No. 2102153–156, 2 pls
Wherry, Edgar T. 1915. "A peculiar oolite from Bethlehem, Pennsylvania." Proceedings of the United States National Museum, 49, (2102) 153–156, 2 pls. https://doi.org/10.5479/si.00963801.49-2102.153.