R. R. Bowker Company, 1967
Buku Referensi
Grolier, 1967
Buku Referensi
Cornell University, 1956
Buku Referensi
Becker, Beverley C., author
[American Library association, ], 2002
eBooks
Lesesne, Teri S., author
[American Library association, ], 2002
eBooks