Gaya APA
Cultlip, S, M., B.S, T, W. (2006).
Effective public relations (Ed. 9, cet.5).
Jakarta ::
Prenadamedia Group,.
Gaya MLA
Cultlip, Scott, M.., B.S, Tri, Wibowo.
"Effective public relations".
Ed. 9, cet.5
Jakarta ::
Prenadamedia Group,,
2006.
Text.