Naterop, B. J., Haberfellner, E., & Weis, E. (1980). Business letters for all ([5th. imp].). Kuala Lumpur: Oxford University Press.
Citación estilo ChicagoNaterop, Bertha Jean, Eva Haberfellner, and Erich Weis. Business Letters for All. [5th. imp]. Kuala Lumpur: Oxford University Press, 1980.
Cita MLANaterop, Bertha Jean, Eva Haberfellner, and Erich Weis. Business Letters for All. [5th. imp]. Kuala Lumpur: Oxford University Press, 1980.
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