A plan of the boundary lines between the Province of Maryland and the three lower counties on Delaware : with part of the parallel of latitude which is the boundary between the provinces of Maryland and Pennsylvania.
MLA
Mason, Charles, 1728-1786. A plan of the boundary lines between the Province of Maryland and the three lower counties on Delaware : with part of the parallel of latitude which is the boundary between the provinces of Maryland and Pennsylvania.. BRBL_00503. 1768]. https://collections.library.yale.edu/catalog/15811172.
APA, 6th edition
Mason, Charles, 1728-1786. (["BRBL_00503"])(1768])[A plan of the boundary lines between the Province of Maryland and the three lower counties on Delaware : with part of the parallel of latitude which is the boundary between the provinces of Maryland and Pennsylvania.]. https://collections.library.yale.edu/catalog/15811172.
