Mississippi River from Cairo Ill. to St. Marys Mo. in VI sheets. Reconnaissance for the use of the Mississippi Squadron under command of Acting Rear Admiral S.P. Lee, U.S.N. By the party of F.H. Gerdes, Assistant, assigned by A.D. Bache, Supdt. United Sta
MLA
Survey, United States Coast. Mississippi River from Cairo Ill. to St. Marys Mo. in VI Sheets. Reconnaissance for the Use of the Mississippi Squadron under Command of Acting Rear Admiral S.P. Lee, U.S.N. By the Party of F.H. Gerdes, Assistant, Assigned by A.D. Bache, Supdt. United Sta. United States Coast Survey], 1865. https://collections.library.yale.edu/catalog/15952238.
APA, 6th edition
Survey, U. S. C. (1865). Mississippi River from Cairo Ill. to St. Marys Mo. in VI sheets. Reconnaissance for the use of the Mississippi Squadron under command of Acting Rear Admiral S.P. Lee, U.S.N. By the party of F.H. Gerdes, Assistant, assigned by A.D. Bache, Supdt. United Sta [Maps]. United States Coast Survey], https://collections.library.yale.edu/catalog/15952238.