APA

E. Johnson P., Paul E. Johnson, . (1994). American Government: People, Institutions, and Policies. U.S.A: Houghton Mifflin.

Chicago

E. Johnson Paul, Paul E. Johnson, . 1994. American Government: People, Institutions, and Policies. U.S.A: Houghton Mifflin.

Harvard

E. Johnson P., Paul E. Johnson, . (1994). American Government: People, Institutions, and Policies. U.S.A: Houghton Mifflin.

MLA

E. Johnson Paul, Paul E. Johnson, . American Government: People, Institutions, and Policies. U.S.A: Houghton Mifflin. 1994.