21
by Gauthier, David P.
Published 1979
Clarendon

22
by Mair, Peter
Published 1997
Clarendon

23
by Bittner, Amanda
Published 2011
Oxford University Press

24
by Keating, Michael
Published 2001
Oxford University Press

26
by Lane, Jan-Erik
Published 1997
Oxford University Press

27
by Barker, Rodney S.
Published 1990
Clarendon

28
by Klosko, George
Published 2005
Oxford University Press

29
Published 2013
Oxford University Press

30
Published 2013
Oxford University Press

31
Published 2013
Oxford University Press

32
Published 2013
Oxford University Press

33
by Ansell, Christopher K.
Published 2011
Oxford University Press

35
by Krook, Mona Lena
Published 2009
Oxford University Press

36
by Horton, Carol A.
Published 2005
Oxford University Press

37
by Benner, Erica
Published 1995
Clarendon

39
by Fischer, Frank
Published 2003
Oxford University Press

40
by Bizer, Marc
Published 2011
Oxford University Press