APA (7th ed.) Citation

Ramsay, J. H. (1892). Lancaster and York: A century of English history (A.D. 1399-1485). Clarendon press.

Chicago Style (17th ed.) Citation

Ramsay, James H. Lancaster and York: A Century of English History (A.D. 1399-1485). Oxford: Clarendon press, 1892.

MLA (9th ed.) Citation

Ramsay, James H. Lancaster and York: A Century of English History (A.D. 1399-1485). Clarendon press, 1892.