Lua APA (7ú heag.)

HOME , G. 7. B. (1984). MANUAL OF COMMERCIAL CORRESPONDENCE. A.H. WHEELER & CO.

Lua i Stíl Chicago (17ú heag.)

HOME , G 7 BAYLEY. MANUAL OF COMMERCIAL CORRESPONDENCE. ALLAHABAD: A.H. WHEELER & CO, 1984.

Lua MLA (9ú heag.)

HOME , G 7 BAYLEY. MANUAL OF COMMERCIAL CORRESPONDENCE. A.H. WHEELER & CO, 1984.

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