Hellmut R. Lang

titleISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
Models, Strategies, and Methods for Effective Teaching978-O-2O5-4O841-2
(O-2O5-4O841-9)
2005David N. Evans

H. Lang · R. L · R. Lang

Hellmut Ritter