Curtis publishing company. (1930). The aviation industry ; a study of underlying trends. The advertising department,The Curtis publishing co.
Čikaški stil citiranja (17. izdanje)Curtis publishing company. The Aviation Industry ; a Study of Underlying Trends. Philadelphia: The advertising department,The Curtis publishing co, 1930.
MLA način citiranja (9. izdanje)Curtis publishing company. The Aviation Industry ; a Study of Underlying Trends. The advertising department,The Curtis publishing co, 1930.
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