Gregory, R. (1919). A study of Locke's theory of knowledge .. [Verlag nicht ermittelbar].
Citazione stile Chigago Style (17a edizione)Gregory, Raymond. A Study of Locke's Theory of Knowledge .. Wilmington, OH: [Verlag nicht ermittelbar], 1919.
Citatione MLA (9a ed.)Gregory, Raymond. A Study of Locke's Theory of Knowledge .. [Verlag nicht ermittelbar], 1919.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.