Funderburk, C. (1982). Presidents and politics: The limits of power. Brooks/Cole Pub. Co.
Chicago-viite (17. p.)Funderburk, Charles. Presidents and Politics: The Limits of Power. Monterey, Calif: Brooks/Cole Pub. Co, 1982.
MLA-viite (9. p.)Funderburk, Charles. Presidents and Politics: The Limits of Power. Brooks/Cole Pub. Co, 1982.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.