APA (7th ed.) Citation

De Santillana, G. (1968). Reflections on men and ideas / by G. de Santillana. M.I.T..

Chicago Style (17th ed.) Citation

De Santillana, G. Reflections on Men and Ideas / by G. De Santillana. M.I.T., 1968.

MLA (9th ed.) Citation

De Santillana, G. Reflections on Men and Ideas / by G. De Santillana. M.I.T., 1968.

Warning: These citations may not always be 100% accurate.