Cita APA

Ferguson, J. H., & McHenry, D. E. (1947). The American system of government. s. n.

Citación estilo Chicago

Ferguson, John Henry, and Dean Eugene McHenry. The American System of Government. New York: s. n, 1947.

Cita MLA

Ferguson, John Henry, and Dean Eugene McHenry. The American System of Government. s. n, 1947.