Barclay, W. (1974). By what authority? Darton, Longman and Todd.
Chicago Style (17th ed.) CitationBarclay, William. By What Authority? London: Darton, Longman and Todd, 1974.
MLA (8th ed.) CitationBarclay, William. By What Authority? Darton, Longman and Todd, 1974.
Warning: These citations may not always be 100% accurate.