APA (7th ed.) Citation

John Ferguson,H, & McHenry, D. E. The American System of Government. Oxford University Press.

Chicago Style (17th ed.) Citation

John Ferguson,H, and Dean E. McHenry. The American System of Government. Oxford: Oxford University Press.

MLA (9th ed.) Citation

John Ferguson,H, and Dean E. McHenry. The American System of Government. Oxford University Press.