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Army-Navy-CAA Standards for the Control of Instrument Flight Rule Traffic
United States. Army
United States. Civil Aeronautics Administration
出版
U.S. Department of Commerce, Civil Aeronautics Administration
, 1946
URL
http://books.google.com.hk/books?id=4mhiVbavnDoC&hl=&source=gbs_api
EBook
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