Cita APA (7a ed.)

Ortega y Gasset, J., & Adams, M. (1971). The idea of principle in Leibnitz and the evolution of deductive theory ([1st ed.].). Norton & COmpany.

Cita Chicago Style (17a ed.)

Ortega y Gasset, José, y Mildred Adams. The Idea of Principle in Leibnitz and the Evolution of Deductive Theory. [1st ed.]. New York: Norton & COmpany, 1971.

Cita MLA (9a ed.)

Ortega y Gasset, José, y Mildred Adams. The Idea of Principle in Leibnitz and the Evolution of Deductive Theory. [1st ed.]. Norton & COmpany, 1971.