@book{Hogg_Vaughan_2018a, address={Harlow, England}, edition={Eighth edition}, title={Social psychology}, url={https://ebookcentral.proquest.com/lib/city/detail.action?docID=5174497}, publisher={Pearson}, author={Hogg, Michael A. and Vaughan, Graham M.}, year={2018} }
@book{Hogg_Vaughan_2018b, address={Harlow, England}, edition={Eighth edition}, title={Social psychology}, publisher={Pearson}, author={Hogg, Michael A. and Vaughan, Graham M.}, year={2018} }