Vogele, S. (1992). HANDBOOK of direct mail: The dialogue method of direct written sales communication / Siegfried Vogele. Verlag Moderne Industrie/Prentice Hall.
Chicago Style (17th ed.) CitationVogele, Siegfried. HANDBOOK of Direct Mail: The Dialogue Method of Direct Written Sales Communication / Siegfried Vogele. New York: Verlag Moderne Industrie/Prentice Hall, 1992.
MLA (9th ed.) CitationVogele, Siegfried. HANDBOOK of Direct Mail: The Dialogue Method of Direct Written Sales Communication / Siegfried Vogele. Verlag Moderne Industrie/Prentice Hall, 1992.
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