New York University Press, 1951
Buku Teks
Anat Zohar
Springer, 2012
eBooks
edited by Katherine Blashki, Pedro Isaias
Information Science Reference, 2014
Buku Teks
edited by Amanda Spink, Diljit Singh
Emerald, 2012
Buku Teks
University of Minnesotta Press , 1954
Buku Teks