Haselbauer, Kathleen J.
Greenwood Press, 1987
Buku Referensi
Library Association Publishing, 1994
Buku Referensi
Library Association, 1982
Buku Referensi
Library Association, 1987
Buku Referensi
Bleznick, Donald W.
Scarecrow Press, 1983
Buku Referensi