APA-viite (7. p.)
Choper, J. H. (2001). The American Constitution: Cases, comments, questions (9th ed.). West Group.
Chicago-viite (17. p.)
Choper, Jesse H. The American Constitution: Cases, Comments, Questions. 9th ed. St. Paul, Minn.: West Group, 2001.
MLA-viite (9. p.)
Choper, Jesse H. The American Constitution: Cases, Comments, Questions. 9th ed. West Group, 2001.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.