APA (7th ed.) Citation

Hull, C. C. (2007). Grassroots rules: How the Iowa Caucus helps elect American presidents. Stanford Univ. Press.

Chicago Style (17th ed.) Citation

Hull, Christopher C. Grassroots Rules: How the Iowa Caucus Helps Elect American Presidents. Stanford, Calif: Stanford Univ. Press, 2007.

MLA (9th ed.) Citation

Hull, Christopher C. Grassroots Rules: How the Iowa Caucus Helps Elect American Presidents. Stanford Univ. Press, 2007.