Ferguson, J. H., & McHenry, D. E. (1967). The American system of government. New York: McGraw-Hill Book Company.
Stile di citazione ChicagoFerguson, John H., e Dean E. McHenry. The American System of Government. New York: McGraw-Hill Book Company, 1967.
Citazione MLAFerguson, John H., e Dean E. McHenry. The American System of Government. New York: McGraw-Hill Book Company, 1967.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.