Alexander Trone Ed. Assessment on social competence of language - London Koros Press UK 2015 - viii,280p. cm. ISBN: 9781781634523 (hbk) 10495.1 Standard No.: 16719 Source: 982, 10/03/2015, Bright Book Service Textual Subjects--Topical Terms: LINGUISTICS Dewey Class. No.: P:(Y7), Q4