KATZENSTEIN HERBERT. (1992). DIRECT MARKETING (2.). MAXWELL MACMILLAN PUBLICATION LTD.
Chicago Style (17th ed.) CitationKATZENSTEIN HERBERT. DIRECT MARKETING. 2. NEW YORK: MAXWELL MACMILLAN PUBLICATION LTD, 1992.
MLA (9th ed.) CitationKATZENSTEIN HERBERT. DIRECT MARKETING. 2. MAXWELL MACMILLAN PUBLICATION LTD, 1992.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.