Cite
APA Citation
Dyer, G., Dyer, J., Hipkiss, K., Kent, D., Marwaha, N., Pate, K., Pledger, K., Roadnight, B., Skipworth, G., & Speed, B. (2017). Edexcel GCSE (9-1) Statistics Student Book. Harlow : Pearson Education. http://access.bl.uk/ark:/81055/vdc_100164894013.0x000001