"Plaintiff's Exhibit 6501"(PDF). Exhibits Offered by Plaintiffs on 1.11.07 and Admitted by the Court on 1.16.07. iowa.gotthefacts.org. 16 يناير 2007. مؤرشف من الأصل(PDF) في 2007-11-07. اطلع عليه بتاريخ 2012-06-02.
"Plaintiff's Exhibit 6501"(PDF). Exhibits Offered by Plaintiffs on 1.11.07 and Admitted by the Court on 1.16.07. iowa.gotthefacts.org. 16 يناير 2007. مؤرشف من الأصل(PDF) في 2007-11-07. اطلع عليه بتاريخ 2012-06-02.