Internet (http://authorities.loc.gov/cgi-bin/Pwebrecon.cgi?AuthRecID=1671971&v1=1&HC=1&SEQ=20070328060723&PID=10261)
The papers of James Madison : Presidential series : Volume 2 : 1 october 1809-2 november
1810 / edited by J.C.A. Stagg, Jeanne Kerr Cross, Susan Holbrook Perdue, cop. 1992