ebrary, Inc, McNamara, C., & Marlowe, M. M. (2011). The Obama presidency in the constitutional order: A first look. Rowman & Littlefield Publishers.
芝加哥风格引文ebrary, Inc, Carol McNamara, 与 Melanie M. Marlowe. The Obama Presidency in the Constitutional Order: A First Look. Lanham, Md.: Rowman & Littlefield Publishers, 2011.
MLA引文ebrary, Inc, et al. The Obama Presidency in the Constitutional Order: A First Look. Rowman & Littlefield Publishers, 2011.
警告：这些引文格式不一定是100％准确.