Lesikar, R. (1969). Report writing for business. R.D. Irwin.
Lua i Stíl Chicago (17ú heag.)Lesikar, R. Report Writing for Business. NULL: R.D. Irwin, 1969.
Lua MLA (9ú heag.)Lesikar, R. Report Writing for Business. R.D. Irwin, 1969.
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