edited, Bernard Berelson
University of Chicago, [date of publication not identified]
Buku Teks
The population council, 1977
Buku Teks
The University of Mincigan, 1969
Buku Teks
edited by T.E. Smith
George Allen and Unwin, 1973
Buku Teks
Chandrasekhar, S., author
University of North Carolina Press, 1972
Buku Teks