Jefferys, T. (1775). A chart of the Gulf of St. Laurence [cartographic material] : composed from a great number of actual surveys and other materials, regulated and connected by astronomical observations. Printed & sold by Robt. Sayer & Jno. Bennett.MLA Citation
Jefferys, Thomas. A Chart of the Gulf of St. Laurence [cartographic Material] : Composed From a Great Number of Actual Surveys and Other Materials, Regulated and Connected By Astronomical Observations. Printed & sold by Robt. Sayer & Jno. Bennett, 1775.