APA
McConel J. W., . (1942). The Evolution of Social Classes. Washington: American Council on Public Affairs.
Chicago
McConel John W, . 1942. The Evolution of Social Classes. Washington: American Council on Public Affairs.
Harvard
McConel J. W., . (1942). The Evolution of Social Classes. Washington: American Council on Public Affairs.
MLA
McConel John W, . The Evolution of Social Classes. Washington: American Council on Public Affairs. 1942.
