ebrary, Inc, & Williamson, A. R. (2009). Medicare: A primer. Nova Science Publishers.
芝加哥风格引文ebrary, Inc, 与 Alice R. Williamson. Medicare: A Primer. Hauppauge, N.Y.: Nova Science Publishers, 2009.
MLA引文ebrary, Inc, 与 Alice R. Williamson. Medicare: A Primer. Nova Science Publishers, 2009.
警告：这些引文格式不一定是100％准确.