Παραπομπή APA

Simon, R. (1980). Public Relations: Concepts and Practices (2nd ed.). Grid.

Παραπομπή Chicago Style

Simon, Raymond. Public Relations: Concepts and Practices. 2nd ed. Columbus: Grid, 1980.

Παραπομπή MLA

Simon, Raymond. Public Relations: Concepts and Practices. 2nd ed. Grid, 1980.