J.U. Sprenger

titleISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
Discoveries and Inventions: Book 1978-O-435-285OO-5
(O-435-285OO-9)
1975etc.

J. S. · J. Sprenger · U. S.

J.-U. Stolzenburg