Cotton, D., Falvey, D., & Kent, S. (2011). Market leader: Intermediate business English course book =. H.: Văn hoá-Thông tin.
Dyfyniad Arddull ChicagoCotton, David., David Falvey, và Simon Kent. Market Leader: Intermediate Business English Course Book =. H.: Văn hoá-Thông tin, 2011.
Dyfyniad MLACotton, David., David Falvey, và Simon Kent. Market Leader: Intermediate Business English Course Book =. H.: Văn hoá-Thông tin, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.