Thực đơn
Mil_Mi-4 Ghi chú|accessdate=
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(trợ giúp)Thực đơn
Mil_Mi-4 Ghi chúLiên quan
Tài liệu tham khảo
WikiPedia: Mil_Mi-4 http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1971/1... http://www.flightglobal.com/pdfarchive/view/1972/1... http://www.flightglobal.com/pdfarchive/view/1975/1... http://www.flightglobal.com/pdfarchive/view/1975/1...