Lua APA (7ú heag.)

Weseen, M. H. (1933). Write better business letters. Thomas Y. Crowell Company.

Lua i Stíl Chicago (17ú heag.)

Weseen, Maurice H. Write Better Business Letters. New York: Thomas Y. Crowell Company, 1933.

Lua MLA (8ú heag.)

Weseen, Maurice H. Write Better Business Letters. Thomas Y. Crowell Company, 1933.

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