APA (7th ed.) Citation

Edwards, G. C., & Howell, W. G. (2009). The Oxford handbook of the American presidency. Oxford University Press.

Chicago Style (17th ed.) Citation

Edwards, George C., and William G. Howell. The Oxford Handbook of the American Presidency. Oxford [u.a.]: Oxford University Press, 2009.

MLA (9th ed.) Citation

Edwards, George C., and William G. Howell. The Oxford Handbook of the American Presidency. Oxford University Press, 2009.