Perspectives (3) Lesson Planner with Audio CD/片 and DVD/2片
作者：Hugh Dellar, Andrew Walkley
ISBN：9781337297653
Perspectives (4) Lesson Planner with Audio CD/片 and DVD/2片
ISBN：9781337297660
Perspectives (2) Student Book with Spark platform
作者：Daniel Barber, Lewis Lansfo...
ISBN：9798214334608
