Piaggio P.7 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Piaggio P.7" in English language version.

refsWebsite

Global rank English rank

6^th place

6^th place

archive.org

Thompson, Jonathan W. (1963). Italian Civil and Military aircraft 1930-1945 (1st ed.). New York: Aero Publishers Inc. pp. 218–219. ISBN 0-8168-6500-0.