Unprejudiced observer. (1761). A letter to a great m---------r, on the prospect of a peace [microform]: Wherein the demolition of the fortifications of Louisbourg is shewn to be absurd, the importance of Canada fully refuted, the proper barrier pointed out in North America, and the reasonableness and necessity of retaining the French sugar islands. London: Printed for G. Kearsley.

Unprejudiced observer. A Letter to a Great M---------r, On the Prospect of a Peace [microform]: Wherein the Demolition of the Fortifications of Louisbourg Is Shewn to Be Absurd, the Importance of Canada Fully Refuted, the Proper Barrier Pointed Out in North America, and the Reasonableness and Necessity of Retaining the French Sugar Islands. London: Printed for G. Kearsley, 1761.

Unprejudiced observer. A Letter to a Great M---------r, On the Prospect of a Peace [microform]: Wherein the Demolition of the Fortifications of Louisbourg Is Shewn to Be Absurd, the Importance of Canada Fully Refuted, the Proper Barrier Pointed Out in North America, and the Reasonableness and Necessity of Retaining the French Sugar Islands. London: Printed for G. Kearsley, 1761.