John Reynolds. (2013). Cambridge Checkpoint English Workbook 1 ("New, Workbook".). Hodder Education.
Citazione stile Chigago Style (17a edizione)John Reynolds. Cambridge Checkpoint English Workbook 1. "New, Workbook". Hodder Education, 2013.
Citatione MLA (9a ed.)John Reynolds. Cambridge Checkpoint English Workbook 1. "New, Workbook". Hodder Education, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.