Cita APA (7a ed.)

Clarke, A. (2016). WJEC/Eduqas biology. Hodder Education Group.

Cita Chicago Style (17a ed.)

Clarke, Andy. WJEC/Eduqas Biology. London: Hodder Education Group, 2016.

Cita MLA (8a ed.)

Clarke, Andy. WJEC/Eduqas Biology. Hodder Education Group, 2016.