McClard, Peggy. „History of Silhouette”. History of Silhouette. www.PeggyMcClard.com. Arhivirano iz originala na datum 2007-12-05. Pristupljeno 12 September 2011.
McClard, Peggy. „History of Silhouette”. History of Silhouette. www.PeggyMcClard.com. Arhivirano iz originala na datum 2007-12-05. Pristupljeno 12 September 2011.