Bell X-22A (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Bell X-22A" in Catalan language version.

refsWebsite

Global rank Catalan rank

1,849^th place

2^nd place

1airport-data.com

low place

low place

airport-data.com

«151521, 1966 Bell X-22A VTOL Research Aircraft, Rev.1». .airport-data.com, anglès. [Consulta: 20 febrer 2011].

google.cat

books.google.cat

de Piolenc, F. Marc; Wright Jr., George E. Ducted Fan Design, Volume 1 (Revised). Marc de Piolenc, p.123.