Sky. 2.
Brian Abbas. Ingrid Freebairn,
- Harlow : Longman, 2005.
- 4 v. : ill. ; 30 cm.
Students' book / Brian Abbs, Ingrid Freebairn -- Test book / Andrew Fairhurst -- Activity book / Jonathan Bygrave, Brian Abbs, Ingrid Freebairn -- Teacher's book / Patricia Mugglestone ... [et al.].