Perkins, Scott, V.U.L.A. Vintage Ultralight and Lightplane Assoc. (2004). "Blueprints Price List". Archived from the original on August 20, 2014. Retrieved April 23, 2014.{{cite web}}: CS1 maint: multiple names: authors list (link)
web.archive.org
Perkins, Scott, V.U.L.A. Vintage Ultralight and Lightplane Assoc. (2004). "Blueprints Price List". Archived from the original on August 20, 2014. Retrieved April 23, 2014.{{cite web}}: CS1 maint: multiple names: authors list (link)