APA (7th ed.) Citation

Cook, E. T. (1967). Royal Marys: Princess Mary and her predecessors. Books for Libraries Press.

Chicago Style (17th ed.) Citation

Cook, E. Thornton. Royal Marys: Princess Mary and Her Predecessors. Freeport, N.Y.: Books for Libraries Press, 1967.

MLA (9th ed.) Citation

Cook, E. Thornton. Royal Marys: Princess Mary and Her Predecessors. Books for Libraries Press, 1967.