edited by Brenda White
Taylor Graham, 1978
Buku Teks
HERTIS Information and Research 1991, 1991
Buku Teks
edited by Eric Davies
Aslib , 1991
Buku Teks
Bowker-Saur , 1990
Buku Teks
edited by Lewis M. Alexander
University of Rhode Island, 1972
Buku Teks