Cooper, J., Kelly, K.A. & Weaver, K. авт-ри, 2004.
Attitudes, norms and social groups. В
M. B. Brewer & Hewstone, M., ред-ри Social Cognition. Malden, MA: Blackwell, с-ци 244–267.
Originally Published in Saints' Lives in Middle English Collections. Kalamazoo, Michigan: Medieval Institute Publications, 2004
Първото издание е от 1934 г