Хеликоптер — разлика између измена

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м (Робот: обликовање ISBN-а)
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* Chiles, James R. ''The God Machine: From Boomerangs to Black Hawks: The Story of the Helicopter''. New York: Bantam Books, {{page|year=2007|id=ISBN 978-0-553-80447-8|pages=}}.
* {{cite book|ref=harv=|author=Cottez, Henri. ''|title=Dictionnaire des structures du vocabulaire savant''. |location=Paris: |publisher=Les Usuels du Robert. {{page|year=1980|id=ISBN 978-0-85177-827-3|pages=}}.
* Francillon, René J. ''McDonnell Douglas Aircraft since Volume II''. London: Putnam, 1997. {{page|year=1920|id=ISBN 978-0-85177-827-3|pages=}}.
* Frawley, Gerard. ''The International Directory of Civil Aircraft, 2003–2004''. Fyshwick, Canberra, Act, Australia: Aerospace Publications Pty Ltd., p. 155. {{page|year=2003|id=ISBN 978-1-875671-58-8|pages=}}.