Cambridge University Press, 2016
eBooks
edited by Kaarle Nordenstreng and Herbert I. Schiller
Ablex, 1979
Buku Teks
Sijthoff & Noordhoff , 1978
Buku Teks
Pan Books, 1980
Buku Teks
Hackworth, Green Haywood, author
Government Printing Office, 1943
Buku Teks