APA

Brown S. . C. D. &. W. . R. (., .Biographical dictionary of twentieth-century philosophers. London: .

Chicago

Brown Stuart Collinson Diane & Wilkinson Robert (ed.), .Biographical dictionary of twentieth-century philosophers. London: .

Harvard

Brown S. . C. D. &. W. . R. (., .Biographical dictionary of twentieth-century philosophers. London: .

MLA

Brown Stuart Collinson Diane & Wilkinson Robert (ed.), .London: . .