Ziarnik, Natalie Reif, author
American Library Association, 2003
eBooks
Ferguson, Elizabeth, author
Library Professional Publications , 1984
Buku Teks
edited by Rae A. Earnshaw, John Vince
Springer, 2008
Buku Teks
Library Association Publishing, 1997
Buku Teks
Dahl, Mark, author
Chandos Publishing, 2006
Buku Teks