Боинг B-17 — разлика између измена

* -{{Cite book |ref= harv|last=Gunston|first=Bill|title=The Illustrated Directory of Fighting Aircraft of World War II,|year=1999|url= |publisher=Salamander Books.|location= ISBN 978-1-84065-092-1.|isbn=9781840650921}}-

* {{Cite book |ref= harv|last=Chant| first = Christopher | title = Drugi svjetski rat - Avioni|year=1977| publisher = Alfa| location = Zagreb | language = {{sr}}| id = |pages= 118-119 | chapter = Boeing B-17, Flying Fortress |pages=118-119}}