APA Citatie

Ferguson, J. H., & McHenry, D. E. (1967). The American system of government. New York: McGraw-Hill Book Company.

Chicago Style citaat

Ferguson, John H., en Dean E. McHenry. The American System of Government. New York: McGraw-Hill Book Company, 1967.

MLA citatie

Ferguson, John H., en Dean E. McHenry. The American System of Government. New York: McGraw-Hill Book Company, 1967.