World Trade Press & ebrary, Inc. (2010). Russia: Communications. World Trade Press.
Dyfyniad Arddull ChicagoWorld Trade Press and Inc ebrary. Russia: Communications. Petaluma, CA: World Trade Press, 2010.
Dyfyniad MLAWorld Trade Press and Inc ebrary. Russia: Communications. World Trade Press, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.