Παραπομπή APA

Ferguson,John H McHenry,Dean E. (1965). The American system of government (8th ed.). Mcgrawhill.

Παραπομπή Chicago Style

Ferguson,John H McHenry,Dean E. The American System of Government. 8th ed. NewYork: Mcgrawhill, 1965.

Παραπομπή MLA

Ferguson,John H McHenry,Dean E. The American System of Government. 8th ed. Mcgrawhill, 1965.