Não informado. (1930). Journal of Air Law. Northwestern University, Law Schools.
Chicago-referens (17:e uppl.)Não informado. Journal of Air Law. Chicago, Ill: Northwestern University, Law Schools, 1930.
MLA-referens (8:e uppl.)Não informado. Journal of Air Law. Northwestern University, Law Schools, 1930.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.