(1935). Letter from the chief of engineers, United States Army transmitting report of the Board of Engineers for Rivers and Harbors on review of reports heretofore submitted on Harbor of Refuge, Delaware Bay; Broadkill River; and Inland waterway from Rehoboth Bay to Delaware Bay, Del. with four illustrations. [Washington, D.C.: U.S. G.P.O..

Letter From the Chief of Engineers, United States Army Transmitting Report of the Board of Engineers for Rivers and Harbors On Review of Reports Heretofore Submitted On Harbor of Refuge, Delaware Bay; Broadkill River; and Inland Waterway From Rehoboth Bay to Delaware Bay, Del. With Four Illustrations. [Washington, D.C.: U.S. G.P.O., 1935.

Letter From the Chief of Engineers, United States Army Transmitting Report of the Board of Engineers for Rivers and Harbors On Review of Reports Heretofore Submitted On Harbor of Refuge, Delaware Bay; Broadkill River; and Inland Waterway From Rehoboth Bay to Delaware Bay, Del. With Four Illustrations. [Washington, D.C.: U.S. G.P.O., 1935.