Intner, Sheila S., author
Libraries Unlimited, 2001
Buku Teks
Intner, Sheila S., author
Libraries Unlimited, 1990
Buku Teks
Ziarnik, Natalie Reif, author
American Library Association, 2003
eBooks
Norman, Sandy, author
Library Association Publishing, 1996
Buku Referensi
School Library Association , 1972
Buku Teks