Gaya APA
Heath, Robert L.. (2005).
Encyclopedia of public relations (2).
Thousand Oaks, CA ::
Sage,.
Gaya Chicago
Heath, Robert L..
Encyclopedia of public relations.
2
Thousand Oaks, CA ::
Sage,,
2005.
Text.
Gaya MLA
Heath, Robert L..
Encyclopedia of public relations.
2
Thousand Oaks, CA ::
Sage,,
2005.
Text.
Gaya Turabian
Heath, Robert L..
Encyclopedia of public relations.
2
Thousand Oaks, CA ::
Sage,,
2005.
Print.