G.D.H.Cole
Studies in class structure
Carter lane, 1955
 Buku Teks
Womack, James G.
Discovering the structure of social studies
Benziger Bros, 1966
 Buku Teks
Cole, George Douglas Howard, 1889-1959
Studies in class structure
Routledge and Kegan Paul, 1955
 Buku Teks
Mills, Edwin S.
Studies in the structure of the urban economy
Johns Hopkins Press, 1972
 Buku Teks
Cole, George Douglas Howard, 1889-1959
Studies in class structure
Routledge and Paul, 1955
 Buku Teks