APA (7th ed.) Citation

Quirk, P. J. (2019). The United States and Canada: How two democracies differ and why it matters. Oxford University Press.

Chicago Style (17th ed.) Citation

Quirk, Paul J. The United States and Canada: How Two Democracies Differ and Why It Matters. New York, NY: Oxford University Press, 2019.

MLA (9th ed.) Citation

Quirk, Paul J. The United States and Canada: How Two Democracies Differ and Why It Matters. Oxford University Press, 2019.