Leijonhufvud, Axel
London Oxford University Press , 1968
Buku Teks
Kregel, J.A.
Macmillan, 1974
Buku Teks
Klein, Lawrence R., author
Macmillan, 1966
Buku Teks
Aschheim, Joseph
Ohio A Bell & Howell 1, 1969
Buku Teks
Michelagnoli, Giovanni, author
[Springer, Springer], 2012
eBooks