Richards, H. G. & Harbison, A. (1944). Well-boring at Brandywine Lighthouse in Delaware Bay, Part I –Geology and macrofossils. Notulae Naturae. 132: 1–14, 11 figs.
435785
Richards, H. G. & Harbison, A.
1944
Well-boring at Brandywine Lighthouse in Delaware Bay, Part I –Geology and macrofossils.