John Reynolds. (2012). Cambridge Checkpoint English Teacher's Resource Book 3. Hodder Education.
Chicago-viite (17. p.)John Reynolds. Cambridge Checkpoint English Teacher's Resource Book 3. Hodder Education, 2012.
MLA-viite (9. p.)John Reynolds. Cambridge Checkpoint English Teacher's Resource Book 3. Hodder Education, 2012.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.