Bureau of Air Commerce (U.S. Department of Commerce) report into a mid-air collision on 16 July 1935.
Bureau of Air Commerce (U.S. Department of Commerce)
1935
National Transportation Library, U.S. Department of Transportation. <a rel="nofollow" class="external free" href="https://rosap.ntl.bts.gov/view/dot/32956">https://rosap.ntl.bts.gov/view/dot/32956</a> DOI: 10.21949/1500058