Dyer, Esther R., author
Gale Information Guide Library, 1981
Buku Referensi
Dixon, Diana, author
Library Association Publishing, 2001
Buku Teks
Gomberg, Karen Cornell, author
McFarland & Co. , 1990
Buku Teks
Maxwell, Nancy Kalikow, author
[American Library association, ], 2006
eBooks
Woolls, Blanche, author
Libraries Unlimited Inc , 1990
Buku Teks