cambridge academic english : an integrated skills course for eap. upper intermediate, student's book,
floor 1
hewings, martin.
cambridge : cambridge university press, 2012.
english language--textbooks for foreign speakers.
advanced grammar in use : a self-study reference and practice book for advanced learners of english,
floor 1
hewings, martin
cambridge university press, cambridge, 2013
english language--grammar
advanced grammar in use : a self-study reference and practice book for advanced learners of english ; with answers,
floor 1
hewings, martin
cambridge university press, cambridge, 2002, ©1999
english language--grammar
advanced grammar in use : a self-study reference and practice book for advanced learners of english ; with answers,
floor 1
hewings, martin
cambridge university press, cambridge, uk, ©2005
english language--grammar
cambridge academic english c1 advanced student's book,
floor 1
hewings, martin; thaine, craig,mccarthy, michael,
cambridge university press, cambridge, 2012
academic language
advanced grammar in use : a self-study reference and practice book for advanced learners of english ; with answers,
floor 1
hewings, martin
cambridge university press, cambridge, uk, ©2005
english language--grammar
pronunciation plus ,
floor 1
hewings, martin,goldstein, sharon
cambridge university press, cambridge, u.k., 1998