Wallwork,Adrian. (1997). Discussions A-Z advanced: A resource book of speaking activities. US: Cambridge university press.
Styl cytowania ChicagoWallwork,Adrian. Discussions A-Z Advanced: A Resource Book of Speaking Activities. US: Cambridge university press, 1997.
Styl cytowania MLAWallwork,Adrian. Discussions A-Z Advanced: A Resource Book of Speaking Activities. US: Cambridge university press, 1997.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..