Analysis of information sources in references of the Wikipedia article "Spirit of St. Louis" in English language version.
{{cite web}}
: CS1 maint: bot: original URL status unknown (link)AOPA, May 2002. Retrieved: May 18, 2007 (photocopied at BarrySchiff.com).{{cite web}}
: CS1 maint: bot: original URL status unknown (link)AOPA, May 2002. Retrieved: May 18, 2007 (photocopied at BarrySchiff.com).{{cite web}}
: CS1 maint: bot: original URL status unknown (link)AOPA, May 2002. Retrieved: May 18, 2007 (photocopied at BarrySchiff.com).