Tracing of field chart of West Channel of East Neebish rapids : surveyed for the use of the St. Mary's River improvement under the orders of Capt. A.W. Whipple, T.E. / by J.H. Foster U.S. Sub. Agt. May 1858.
MLA
Tracing of Field Chart of West Channel of East Neebish Rapids : Surveyed for the Use of the St. Mary's River Improvement under the Orders of Capt. A.W. Whipple, T.E. / by J.H. Foster U.S. Sub. Agt. May 1858. s.n.] , 1858. https://collections.library.yale.edu/catalog/15814515.
APA, 6th edition
Tracing of field chart of West Channel of East Neebish rapids : surveyed for the use of the St. Mary's River improvement under the orders of Capt. A.W. Whipple, T.E. / by J.H. Foster U.S. Sub. Agt. May 1858. (1858). [Maps]. s.n.] , https://collections.library.yale.edu/catalog/15814515.