Webster, E. H. (1916). English for business: As applied in commercial, technical, and other secondary schools. Newson & Company.
Lua i Stíl Chicago (17ú heag.)Webster, Edward Harlan. English for Business: As Applied in Commercial, Technical, and Other Secondary Schools. New York: Newson & Company, 1916.
Lua MLA (8ú heag.)Webster, Edward Harlan. English for Business: As Applied in Commercial, Technical, and Other Secondary Schools. Newson & Company, 1916.
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