APA

Bernays E. L., . (1986). The later years: public relations insights 1956-1986. New York: H & M Publishers.

Chicago

Bernays Edward L, . 1986. The later years: public relations insights 1956-1986. New York: H & M Publishers.

Harvard

Bernays E. L., . (1986). The later years: public relations insights 1956-1986. New York: H & M Publishers.

MLA

Bernays Edward L, . The later years: public relations insights 1956-1986. New York: H & M Publishers. 1986.