TY  - BOOK
AU  - Calvert,Peter
TI  - The concept of class: an historical introduction 
SN  - 0312159188 :
AV  - HT 609 .C25 1982
PY  - 1982///
CY  - New York
PB  - St. Martin's Press
KW  - Social classes
N1  - Includes index; Bibliography: p. [217]-229
ER  -