APA (7th ed.) Citation

Brown, R. A. (1973). Origins of English feudalism. Allen & Unwin.

Chicago Style (17th ed.) Citation

Brown, Reginald Allen. Origins of English Feudalism. London: Allen & Unwin, 1973.

MLA (9th ed.) Citation

Brown, Reginald Allen. Origins of English Feudalism. Allen & Unwin, 1973.

Warning: These citations may not always be 100% accurate.