Post route map [of the states of] New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, and parts of New York and Maine / designed and constructed under the orders of Postmaster General Wm. Dennison and Second Ass't Postmaster Gen'l Geo. Wm. M
MLA
Nicholson, Walter L. Post Route Map [of the States of] New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, and Parts of New York and Maine / Designed and Constructed under the Orders of Postmaster General Wm. Dennison and Second Ass't Postmaster Gen'l Geo. Wm. M. s.n., 19AD. https://collections.library.yale.edu/catalog/15606973.
APA, 6th edition
Nicholson, W. L. (19 C.E.). Post route map [of the states of] New Hampshire, Vermont, Massachusetts, Rhode Island, Connecticut, and parts of New York and Maine / designed and constructed under the orders of Postmaster General Wm. Dennison and Second Ass't Postmaster Gen'l Geo. Wm. M [Maps]. s.n., https://collections.library.yale.edu/catalog/15606973.
