Jones, L. L. (1944). Our business life (3d ed.). The Gregg Pub. Co.
Lua i Stíl Chicago (17ú heag.)Jones, Lloyd Llewellyn. Our Business Life. 3d ed. New York, Chicago [etc.]: The Gregg Pub. Co, 1944.
Lua MLA (8ú heag.)Jones, Lloyd Llewellyn. Our Business Life. 3d ed. The Gregg Pub. Co, 1944.
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