1
by Trudgill, Peter, 1943-
Published 1990
Book
2
6
Published 1991
Book
9
by Hennig, Beate, 1942-
Published 1995
Book
10
by Sibille, Jean, 1955-
Published 2000
Book
11
12
Published 1994
Book
15
by Lejska, Vladislav, 1928-
Published 1968
Thesis Manuscript
16
by Crystal, David, 1941-
Published 2005
Book
18
by Walter, Henriette, 1929-
Published 1988
Book