Edgley, R. (1969). Reason in theory and practice. Hutchinson University library.
Citazione stile Chigago Style (17a edizione)Edgley, Roy. Reason in Theory and Practice. London: Hutchinson University library, 1969.
Citatione MLA (9a ed.)Edgley, Roy. Reason in Theory and Practice. Hutchinson University library, 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.