Cole, George Douglas Howard, 1889-1959
Studies in class structure
Routledge and Kegan Paul, 1955
 Buku Teks
Cole, George Douglas Howard, 1889-1959
Studies in class structure
Routledge and Paul, 1955
 Buku Teks SO
Forcese, Dennis P.
The Canadian class structure
McGraw-Hill Ryerson, 1980
 Buku Teks SO
Abercrombie, Nicholas
Class, Structure and knowledge/ Nicholas Abercrombie.
Basil Blackwell, 1980
 Buku Teks SO
Mills, Edwin S.
Studies in the structure of the urban economy
Johns Hopkins Press, 1972
 Buku Teks SO