edited by Alan F. MacDougall; Ray Prytherch
Gower, 1991
Buku Teks
edited by Diane Kresh
American Library association, 2007
eBooks
Edited by Ray Prytherch
Gower, 1998
Buku Teks
Koontz, Dean R. (Dean Ray), 1945-, author
Alfred A. Knopf, 1997
Buku Teks
edited by Michael R. Lowry and Robert D. McCartney
AAAI Press , 1991
Buku Teks