Hillsborough Bay, Florida. : Letter from the Secretary of the Army transmitting a letter from the Chief of Engineers, Dept. of the Army, dated Sept. 14, 1966, submitting a report ... on an interim hurricane survey of Hillsborough Bay, Florida, authorized by Public Law 71, 84th Congress, approved June 15, 1955. (U.S. Govt. Print. Off,, 1968)