41
Published 1984
42
by Nguyen, Dinh-Hoa
Published 1991
43
Published 1994
44
Published 1999
45
by Moulton, Jenni Karding
Published 1994
46
Published 1994
47
Published 1994
48
Published 1995
49
Published 1993
50
Published 1993
51
by Duff, Charles
Published 1960
52
by Hava, J. G.
Published 2001
53
by Harrison, William, 1934-
Published 1981
54
Published 2006
55
Published 2001
56
Published 2009
57
Published 2009
58
59
Published 1995
60
by Hawkins, Joyce M.
Published 1997