Williamson, T., & Association, T. S. P. (1988). Knowability and constructivism. Blackwell Publishing.
Čikaški stil citiranja (17. izdanje)Williamson, T., i The Scots Philosophical Association. Knowability and Constructivism. Blackwell Publishing, 1988.
MLA način citiranja (9. izdanje)Williamson, T., i The Scots Philosophical Association. Knowability and Constructivism. Blackwell Publishing, 1988.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.