Owen-Smith, R. Norman, author
Cambridge University Press, 1988
Buku Teks
edited by John P. Gray
Academic Press, 1981
Buku Teks
edited by D.F. Barbe ; with contributions by D.F. Barbe ... [et al.]
Springer-Verlag, 1982
Buku Teks
Computer Science Pres, 1983
Buku Teks
Achenbach, Joel, author
Simon & Schuster, 1999
Buku Teks