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Cutting edge : Upper intermediate / teacher's resource book/
Essex : Longman, 1999
175 p. : ill ; 30 cm.



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Keynote : upper intermediate : student's book / Helen Stephenson, Lewis Lansford, Paul Dummett.
Andover : National Geographic Learning; Cengage Learning, c2016
183 p. : ill. ; 30 cm.




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Keynote: intermediate : student's book / Paul Dummett, Helen Stephenson, Lewis Lansford
[Andover] : National Geographic Learning; Cengage Learning, [2016]
181 p. : ill. ; 30 cm.

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