APA aipamena

Peter Riley. (2012). Cambridge Checkpoint Science Workbook 1 ("New, Workbook".). Hodder Education.

Chicago Style aipamena

Peter Riley. Cambridge Checkpoint Science Workbook 1. "New, Workbook". Hodder Education, 2012.

MLA aipamena

Peter Riley. Cambridge Checkpoint Science Workbook 1. "New, Workbook". Hodder Education, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.