APA

Burns R. I., . (1967). The crusader kingdom of Valencia: reconstruction on a thirteenth-century frontier. Cambridge: Harvard University Press.

Chicago

Burns Robert Ignatius, . 1967. The crusader kingdom of Valencia: reconstruction on a thirteenth-century frontier. Cambridge: Harvard University Press.

Harvard

Burns R. I., . (1967). The crusader kingdom of Valencia: reconstruction on a thirteenth-century frontier. Cambridge: Harvard University Press.

MLA

Burns Robert Ignatius, . The crusader kingdom of Valencia: reconstruction on a thirteenth-century frontier. Cambridge: Harvard University Press. 1967.