edited by Bernard Berelson
Information Agency, 1975
Buku Teks
Prokhorova, Anna, author
United Nations Publications, 2017
Artikel Jurnal
Naufal, George, author
United Nations Publications, 2017
Artikel Jurnal
Karabchuk, Tatiana, author
United Nations Publications, 2017
Artikel Jurnal
edited by Stephanie Abraham Hirsh and Philip Bacon
Harcourt Brace Jovanovich, 1988
Buku Teks