Hower, A., & Hower, N. (1938). Successful letter writing: Business and personal (1a. ed.). Garden City Books.
Citace podle Chicago (17th ed.)Hower, Aline, a Nels Hower. Successful Letter Writing: Business and Personal. 1a. ed. Nueva York: Garden City Books, 1938.
Citace podle MLA (9th ed.)Hower, Aline, a Nels Hower. Successful Letter Writing: Business and Personal. 1a. ed. Garden City Books, 1938.
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