Boeing XPB (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Boeing XPB" in Spanish language version.

refsWebsite

Global rank Spanish rank

low place

low place

1flightglobal.com

223^rd place

791^st place

aerofiles.com

"Boeing C to Z, and hyphenates". Aerofiles. Retrieved 18 June 2010.

flightglobal.com

"San Francisco-Honolulu Flight Fails". Flight, 10 September 1925, p. 579.