Penn, B. (2004). Be your own PR expert (2nd ed.). Thomson Learning.
Chicago-čujuhus (17. p.)Penn, Bill. Be Your Own PR Expert. 2nd ed. Australia: Thomson Learning, 2004.
MLA-čujuhus (9. p.)Penn, Bill. Be Your Own PR Expert. 2nd ed. Thomson Learning, 2004.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.