APA (7th ed.) Citation

Parry, J. H. (1940). The Spanish theory of empire in the sixteenth century. The University press.

Chicago Style (17th ed.) Citation

Parry, J. H. The Spanish Theory of Empire in the Sixteenth Century. Cambridge [England]: The University press, 1940.

MLA (9th ed.) Citation

Parry, J. H. The Spanish Theory of Empire in the Sixteenth Century. The University press, 1940.