A compendious system of geography : being a description of the earth ...

MLA

Willetts, Jacob. A compendious system of geography : being a description of the earth ... Poughkeepsie [N.Y.] : P. Potter, for himself and for S. Potter, Philadelphia, 1819.

APA

Willetts, J. (1819). A compendious system of geography : being a description of the earth ... Poughkeepsie [N.Y.] : P. Potter, for himself and for S. Potter, Philadelphia.

Chicago

Willetts, Jacob. A compendious system of geography : being a description of the earth ... Poughkeepsie [N.Y.] : P. Potter, for himself and for S. Potter, Philadelphia, 1819.