Cunningham, Sarah (1960- ). New Cutting Edge : upper intermediate : student's book / Sarah Cunningham, Peter Moor. - 4th impr. - Harlow : Longman, 2007. - 175, [1] s. : il. ; 30 cm + New Cutting Edge mini-dictionary : 47 s. ; 21 cm. ISBN: 1405852305 Subjects--Topical Terms: Język angielski--podręczniki.