Karl Hellman

titleISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
The Customer Learning Curve: Creating Profits from Marketing Chaos978-O-324-22667-6
(O-324-22667-5)
2003Ardis Burst

K. H. · Karl H. · Karl (Karl Hellman) Hellman

Karl Hellmig