Andrew Davis; C.J. Clegg. (2017). Biology for the IB Diploma Study and Revision Guide. Hodder Education.
Lua i Stíl Chicago (17ú heag.)Andrew Davis; C.J. Clegg. Biology for the IB Diploma Study and Revision Guide. Hodder Education, 2017.
Lua MLA (9ú heag.)Andrew Davis; C.J. Clegg. Biology for the IB Diploma Study and Revision Guide. Hodder Education, 2017.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.