Preliminary post route map of the states of Virginia and West Virginia together with Maryland and Delaware, with adjacent parts of Pennsylvania, Ohio, Kentucky, Tennessee and North Carolina / designed and constructed under the orders of Postmaster General
MLA
Dept, United States. Post Office. Preliminary Post Route Map of the States of Virginia and West Virginia Together with Maryland and Delaware, with Adjacent Parts of Pennsylvania, Ohio, Kentucky, Tennessee and North Carolina / Designed and Constructed under the Orders of Postmaster General. Post Office Dept., 1874. https://collections.library.yale.edu/catalog/15603988.
APA, 6th edition
Dept, U. S. P. O. (1874). Preliminary post route map of the states of Virginia and West Virginia together with Maryland and Delaware, with adjacent parts of Pennsylvania, Ohio, Kentucky, Tennessee and North Carolina / designed and constructed under the orders of Postmaster General [Maps]. Post Office Dept., https://collections.library.yale.edu/catalog/15603988.
