41
42
43
44
45
46
47
48
49
50
by Daskalov, Roumen
Published 2004
Published 2004
Book
51
52
by Jedlicki, Jerzy
Published 1999
Published 1999
Book
53
54
by Pynsent, Robert B.
Published 1994
Published 1994
Book
55
56
57
by Karady, Victor
Published 2004
Published 2004
Book
58
59
60