Amery, J., & Riley, P. (2021). Cambridge Checkpoint Lower Secondary Science Teacher's Guide 7 with Boost Subscription (1st.). Hodder Education.
Chicago-referens (17:e uppl.)Amery, Judith, och Peter Riley. Cambridge Checkpoint Lower Secondary Science Teacher's Guide 7 with Boost Subscription. 1st. London: Hodder Education, 2021.
MLA-referens (9:e uppl.)Amery, Judith, och Peter Riley. Cambridge Checkpoint Lower Secondary Science Teacher's Guide 7 with Boost Subscription. 1st. Hodder Education, 2021.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.