Virtusio, R. P. (2007). How to make it in PR: PR veterans tell their stories. Context Communications International.
Dyfyniad Arddull ChicagoVirtusio, Romeo P. How to Make It in PR: PR Veterans Tell Their Stories. San Juan: Context Communications International, 2007.
Dyfyniad MLAVirtusio, Romeo P. How to Make It in PR: PR Veterans Tell Their Stories. Context Communications International, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.