edited by Peter G. Stone [and] Brian L. Molyneaux
Routledge, 1994
Buku Teks
edited by Martha Pollak
MIT Press, 1997
Buku Teks
edited by Berelson, Bernard
American Library Association, 1949
Buku Teks
Edson, Gary, author
Routledge, 1996
Buku Referensi
edited by Ulla Keding Olofsson ; illustrator, Teichert, Gerard
Unesco , 1979
Buku Teks