Citazione Stile APA (7a Edizione)

Ferguson, J. H., & McHenry, D. E. (1947). The American federal Government. McGraw-Hill Book.

Citazione stile Chigago Style (17a edizione)

Ferguson, John Henry, e Dean Eugene McHenry. The American Federal Government. New York [u.a]: McGraw-Hill Book, 1947.

Citatione MLA (9a ed.)

Ferguson, John Henry, e Dean Eugene McHenry. The American Federal Government. McGraw-Hill Book, 1947.