APA (7th ed.) Citation

Parry, J. H. (1940). The Spanish theory of empire in the sixteenth century. Cambridge Univ. Press.

Chicago Style (17th ed.) Citation

Parry, J. H. The Spanish Theory of Empire in the Sixteenth Century. London: Cambridge Univ. Press, 1940.

MLA (9th ed.) Citation

Parry, J. H. The Spanish Theory of Empire in the Sixteenth Century. Cambridge Univ. Press, 1940.