Smith, C. J., & Mayne, D. D. (1924). Modern business English: A course in English on the "learn to express by expressing" plan. Lyons & Carnahan.
Lua i Stíl Chicago (17ú heag.)Smith, Carrie J., agus D. D. Mayne. Modern Business English: A Course in English on the "Learn to Express by Expressing" Plan. Chicago : New York: Lyons & Carnahan, 1924.
Lua MLA (8ú heag.)Smith, Carrie J., agus D. D. Mayne. Modern Business English: A Course in English on the "Learn to Express by Expressing" Plan. Lyons & Carnahan, 1924.
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