Morse, William Clifford, 1874- The geologic history of the Vicksburg national military park area, by William Clifford Morse. - [University, Miss.] 1935. - 20 p. front. (fold. map) illus. 23 cm. - Mississippi. State Geological Survey. Bulletin 28 . LCCN: gs 35000210 Subjects--Topical Terms: Geology--Mississippi--Vicksburg area. Subjects--Geographic Terms: Vicksburg National Military Park (Miss.) LC Class. No.: QE129 / .A2 no. 28