Stevens, R. (1817). An essay on average, and on other subjects connected with the contract of marine insurance: Dedicated, by permission, to the committee for managing the affairs of Lloyd's. Philadelphia: Published by Mathew Carey ... and for sale by Wells and Lilly, Boston.

Stevens, Robert. An Essay On Average, and On Other Subjects Connected With the Contract of Marine Insurance: Dedicated, By Permission, to the Committee for Managing the Affairs of Lloyd's. Philadelphia: Published by Mathew Carey ... and for sale by Wells and Lilly, Boston, 1817.

Stevens, Robert. An Essay On Average, and On Other Subjects Connected With the Contract of Marine Insurance: Dedicated, By Permission, to the Committee for Managing the Affairs of Lloyd's. Philadelphia: Published by Mathew Carey ... and for sale by Wells and Lilly, Boston, 1817.