Intner, Sheila S.
Libraries Unlimited, 1990
Buku Teks
Walter, Virginia A.
[American Library association;, ], 2001
eBooks
Hage, Christine Lind
[American Library association, American Library association], 2004
eBooks
R.R. Bowker, 1969
Buku Referensi
Elliott, Donald S.
[American Library association, American Library association], 2007
eBooks