1
by Bachmann, E. Theodore
Published 1939
Book
2
by Sziel, W.
Published 1956
Book
3
by Jones, Christina H.
Published 1944
Book
4
by Hanselmann, Siegfried.
Published 1971
Book
5
by Livingstone, W. P.
Published 1923
Book
7
by Ewing, W. 1857-
Published 1930
Book
8
by Foerster, Frank.
Published 1991
Book
10
Published 1891
Journal / Magazine
11
Published 1902
Journal / Magazine
12
Published 1951
Book
14
by Lückhoff, Martin.
Published 1998
Book
15
Published 1949
Book