Thực đơn
Bell_201 Xem thêmThực đơn
Bell_201 Xem thêmLiên quan
Tài liệu tham khảo
WikiPedia: Bell_201 http://www.centennialofflight.gov/essay/Rotary/Hue... http://www.airliners.net/info/stats.main?id=70 http://www.globalsecurity.org/military/systems/air... https://web.archive.org/web/20100527204940/http://... https://commons.wikimedia.org/wiki/Bell_47?uselang...