Simon Barefoot. (2019). Cambridge IGCSE Spanish. Third Edition (Third Edition.). Hodder Education.
Chicago-referens (17:e uppl.)Simon Barefoot. Cambridge IGCSE Spanish. Third Edition. Third Edition. London: Hodder Education, 2019.
MLA-referens (9:e uppl.)Simon Barefoot. Cambridge IGCSE Spanish. Third Edition. Third Edition. Hodder Education, 2019.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.