Irrgang, J. (2009). Leitfaden Kundenservice: Exzellenter Service in allen Phasen des Kundenkontakts. GABAL.
Chicago Style (17th ed.) CitationIrrgang, Jacqueline. Leitfaden Kundenservice: Exzellenter Service in Allen Phasen Des Kundenkontakts. Offenbach am Main: GABAL, 2009.
MLA (9th ed.) CitationIrrgang, Jacqueline. Leitfaden Kundenservice: Exzellenter Service in Allen Phasen Des Kundenkontakts. GABAL, 2009.
Warning: These citations may not always be 100% accurate.