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1
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.

Featuring remarkable people communicating passionately and persuasively, TED Talks provide the ELT classroom with inspiring ideas and an unparalleled source of authentic language input
3
Life 2 : Student's book / Paul Dummentt, John Hughes, Helen Stephenson.
Boston, MA. : National Geographic Learning, 2015
175 p. ; 30 cm.
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Life 3 : Student book / Paul Dummentt, John Hughes, Helen Stephenson.
Boston, MA. : National Geographic Learning, 2015
176 p. ; 30 cm.
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Life 4 / Paul Dummett, John Hughes, Helen Stephenson.
Boston, MA : National Geographic Learning, 2015
183 p. ; 30 cm.