Hartmut Walravens
Hartmut Walravens (born 1944) is a German librarian. He was the director of the International ISBN Agency ?-2006 and the International ISMN Agency ?-2006. He is presently Chairman of the International ISMN Agency 2006–present. Provided by Wikipedia-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20