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