1
Published 1993
Book
2
by Rakel, Robert E. 1932-
Published 1993
Book
3
Published 1994
Book
4
by Rakel, Robert E. 1932-
Published 1990
Book
5
Published 1999
Book
8
by Geyman, John P.
Published 1980
Book
9
Published 1969
Book
11
by Bydžovský, Jan, 1981-
Published 2010
Book