Hoffjann, O. (2015). Public relations. Konstanz: UVK-Verl.-Ges.
ISBD CitationPublic relations / Olaf Hoffjann . — Konstanz : UVK-Verl.-Ges, 2015. — 285 S. : graph. Darst., Tab. — (UTB ; 4434). — ISBN 978-3-8252-4434-7
MLA CitationHoffjann, Olaf. Public Relations.Konstanz: UVK-Verl.-Ges, 2015.
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