Part of the boundary between the United States and Texas, north of Sabine River from the 39th [i.e. 36th] to the 72nd mile mound / drawn from the notes of survey and copied for the use of the commissioners under the Convention of 25th April 1838 by J. Edm
MLA
Blake, Jacob Edmund, 1811 or 12-1846. Part of the boundary between the United States and Texas, north of Sabine River from the 39th [i.e. 36th] to the 72nd mile mound / drawn from the notes of survey and copied for the use of the commissioners under the Convention of 25th April 1838 by J. Edm. BRBL_00530. 1842?]. https://collections.library.yale.edu/catalog/15811556.
APA, 6th edition
Blake, Jacob Edmund, 1811 or 12-1846. (["BRBL_00530"])(1842?])[Part of the boundary between the United States and Texas, north of Sabine River from the 39th [i.e. 36th] to the 72nd mile mound / drawn from the notes of survey and copied for the use of the commissioners under the Convention of 25th April 1838 by J. Edm]. https://collections.library.yale.edu/catalog/15811556.