APA

Cohen A. R., Bradford D. L., . (1991). Influence without authority. New York: J. Wiley.

Chicago

Cohen Allan R, Bradford David L, . 1991. Influence without authority. New York: J. Wiley.

Harvard

Cohen A. R., Bradford D. L., . (1991). Influence without authority. New York: J. Wiley.

MLA

Cohen Allan R, Bradford David L, . Influence without authority. New York: J. Wiley. 1991.