Gregory, Philippa, author
Thorndike Press, 2016
Buku Teks
Toynbee, Arnold J., translator
Osford University Press, 1969
Buku Teks
edited by Larry Earl Bone
Champaign, Illinois University of Illinois Graduate School of Library Science 1968, 1968
Buku Teks
Artikel Jurnal
Usherwood, Bob, author
Library Association, 1981
Buku Teks