Reigner, C. G. (1939). Secretarial training. H. M. Rowe Company.
Lua i Stíl Chicago (17ú heag.)Reigner, Charles Gottshall. Secretarial Training. Baltimore : Chicago: H. M. Rowe Company, 1939.
Lua MLA (8ú heag.)Reigner, Charles Gottshall. Secretarial Training. H. M. Rowe Company, 1939.
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