Παραπομπή APA

Ferguson,John H McHenry, D. E. (1950). The American federal government (2nd ed.). Mcgrowhill book company.

Παραπομπή Chicago Style

Ferguson,John H McHenry, Dean E. The American Federal Government. 2nd ed. New York: Mcgrowhill book company, 1950.

Παραπομπή MLA

Ferguson,John H McHenry, Dean E. The American Federal Government. 2nd ed. Mcgrowhill book company, 1950.