MLA

Morgan, William, d. 1690, Ogilby, John, 1600-1676. Mr. Ogilby's and William Morgan's Pocket book of the roads : with their computed and measured distances, and the distinction of market and post-towns / by William Morgan .... 1689. https://collections.library.yale.edu/catalog/10987181.

APA, 6th edition

Morgan, William, d. 1690, & Ogilby, John, 1600-1676. (1689)[Mr. Ogilby's and William Morgan's Pocket book of the roads : with their computed and measured distances, and the distinction of market and post-towns / by William Morgan ...]. https://collections.library.yale.edu/catalog/10987181.