APA

Russell B., . (1914). Our knowledge of the external world, as a field for scientific method in philosophy. London: Allen and Unwin.

Chicago

Russell Bertrand, . 1914. Our knowledge of the external world, as a field for scientific method in philosophy. London: Allen and Unwin.

Harvard

Russell B., . (1914). Our knowledge of the external world, as a field for scientific method in philosophy. London: Allen and Unwin.

MLA

Russell Bertrand, . Our knowledge of the external world, as a field for scientific method in philosophy. London: Allen and Unwin. 1914.