61
by Dunnett, Peter J. S.
Published 1990
62
Published 1991
63
64
Published 2005
65
by Roberts, Paul
Published 2005
66
Published 1990
67
by Quester, George H.
Published 1990
68
by Betz, David, 1969-
Published 2011
69
Published 2001
70
by Hirsch, Edith, 1899-
Published 1993
71
Published 2010
72
by Collinson, Sarah
Published 1994
73
Published 1990
74
by Tietenberg, Thomas H.
Published 1996
75
by Richmond, Anthony H, 1925
Published 1994
76
by Mathiason, John, 1942-
Published 2009
77
by Yu, Tony Fu-Lai, 1950-
Published 2001
78
Published 2009
79
Published 1994
80
by Kurbalija, Jovan
Published 2010