Fuller, Lon L., author
Yale University Press, 1974
Buku Teks
Fuller, Lon L., author
Yale University Press, 1964
Buku Teks
Hart, H.L.A., author
Standford University Press, 1969
Buku Teks
Mitchell, Basil, author
Oxford University Press, 1970
Buku Teks
Raz, Joseph, author
Oxford Univesity Press, 2009
Buku Teks