APA Format
; Wells, Jon. (2002). Sniper : the true story of anti-abortion killer James Kopp. : John Wiley and Sons Canada, Ltd.
MLA Format
; Wells, Jon. Sniper : the true story of anti-abortion killer James Kopp. : John Wiley and Sons Canada, Ltd., 2002
Chicago Format
; Wells, Jon. Sniper : the true story of anti-abortion killer James Kopp. : John Wiley and Sons Canada, Ltd., 2002
Australian/Harvard Format
; Wells, Jon. 2002. Sniper : the true story of anti-abortion killer James Kopp. John Wiley and Sons Canada, Ltd.