SIMON, R. (1996). Public Relations Work Book Writing & Techniques. NTC Business Books.
Chicago Style aipamenaSIMON, Raymond. Public Relations Work Book Writing & Techniques. NTC Business Books, 1996.
MLA aipamenaSIMON, Raymond. Public Relations Work Book Writing & Techniques. NTC Business Books, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.