самоцитирование

Как правильно ссылаться на самого себя: "J.N. Westwood, A History of Russian Railways (1964) is useful, although its author seems to be more interested in railways than history" (J.N. Westwood, Endurance and Endeavour: Russian History 1812-1992, 4th ed., Oxford 1993, 556). Уважаю.