Aldo Leopold
1995
Filtré
Aldo Leopold
1995
S. Peter Dance, DK Publishing
1991
Jack Canfield, Mark Victor Hansen, Dave Barry, (mei) Kan, fei er de, Jack Canfield
1998
Stephen Jay Gould
1996
Stephen Jay Gould, Peter Andrews, Marianne Collins, Andrews, Peter
1993
Frans de Waal
1997
Stephen Jay Gould
1993
Judy Dunn
1990
Chaia Heller
1998
Albert Jacquard
1992
Bottema
1990
Hubert Reeves
1990
Henry of Ghent, Roland J. Teske, Henry
1991
Nicholas Evans
1998
David Baguley
1990
Stuttgarter Kolloquium zur Historischen Geographie des Altertums (6th 1996)
1998
Yves Lacoste
1996
Peter Abelard, Pierre Abélard, Maurice de Gandillac
1993
José A. Prades, Robert Tessier, Jean-Guy Vaillancourt
1992
Antoine Vergote
1997
