A. Danuta A. Nitecki, Curtis L. Kendrick, editor
Libraries Unlimited, 2001
Buku Teks
Buku Teks
Broto, Eduard, author
Lins, [date of publication not identified]
Buku Referensi
Hart, Thomas L., author
Libraries Unlimited, 1990
Buku Teks
Stephenson, Mary Sue
The Scarecrow Press, 1990
Buku Referensi