Phillips, W. (1968). A manual of political economy, with particular reference to the institutions, resources and condition of the United States. A.M. Kelly.
Chicago-viite (17. p.)Phillips, Willard. A Manual of Political Economy, with Particular Reference to the Institutions, Resources and Condition of the United States. New York: A.M. Kelly, 1968.
MLA-viite (9. p.)Phillips, Willard. A Manual of Political Economy, with Particular Reference to the Institutions, Resources and Condition of the United States. A.M. Kelly, 1968.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.