APA (7th ed.) Zitazioa

Shapiro, R. Y., Kumar, M. J., & Jacobs, L. R. (2000). Presidential power: Forging the presidency for the twenty-first century. Columbia University Press.

Chicago Style (17th ed.) Zitazioa

Shapiro, Robert Y., Martha Joynt Kumar, eta Lawrence R. Jacobs. Presidential Power: Forging the Presidency for the Twenty-first Century. New York: Columbia University Press, 2000.

MLA (9th ed.) Zitazioa

Shapiro, Robert Y., et al. Presidential Power: Forging the Presidency for the Twenty-first Century. Columbia University Press, 2000.