The practice of public relations /
Blumenthal, L. Roy.
The practice of public relations / by L. Roy Blumenthal. - New York: Macmillan, 1972. - xvi, 278 p. ; 26 cm.
Includes bibliographies.
Public relations.
The practice of public relations / by L. Roy Blumenthal. - New York: Macmillan, 1972. - xvi, 278 p. ; 26 cm.
Includes bibliographies.
Public relations.
