APA-viite (7. p.)
ebrary, Inc, & Parnell, W. B. (2009). Gun control: Background, regulation and legislation. Nova Science Publishers.
Chicago-viite (17. p.)
ebrary, Inc, ja William B. Parnell. Gun Control: Background, Regulation and Legislation. New York: Nova Science Publishers, 2009.
MLA-viite (9. p.)
ebrary, Inc, ja William B. Parnell. Gun Control: Background, Regulation and Legislation. Nova Science Publishers, 2009.
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