Doll, Carol A., author
[American Library association, ], 2002
eBooks
Libraries Unlimited, 1988
Buku Referensi
Dyer, Esther R., author
Gale Information Guide Library, 1981
Buku Referensi
Wynar, Christine Gehrt
Libraries Unlimited, 1986
Buku Referensi
Hepner, Harry W.
McGraw-Hill, 1969
Buku Teks