3. MERTON, R. K.'Patterns of Influence: Local and Cosmopolitan Influentials.' In Social Theory and Social Structures (Revised Ed.). Glencoe: The Free Press , 1957, Ch. 10, p. 419-419.
4.
4. MORSE, NANCY . Satisfactions in the White-Collar Job. Ann Arbor Survey Research Center, Univ. of Michigan , 1953, Ch. 1.
5.
5. PELZ, DONALD C.'Leadership Within a Hierarchical Organization.'J. Soc. Issues, Vol. VII, No. 3, 1951.
6.
6. Ross, A. M.Trade Union Wage Policy. Univ. of Calif. Press , 1948.
7.
7. WEBER, MAX . From Max Weber: Essays in Sociology. H. H. Gerth and C. Wright Mills (Eds.). New York: Oxford Univ. Press , 1946.