ebrary, Inc, & Parnell, W. B. (2009). Gun control: Background, regulation and legislation. Nova Science Publishers.
芝加哥风格引文ebrary, Inc, 与 William B. Parnell. Gun Control: Background, Regulation and Legislation. New York: Nova Science Publishers, 2009.
MLA引文ebrary, Inc, 与 William B. Parnell. Gun Control: Background, Regulation and Legislation. Nova Science Publishers, 2009.
警告：这些引文格式不一定是100％准确.