Three Jewish philosophers: Philo, Saadya Gaon, Jehuda Halevi. New York: Meridian books, 1960. 147 p.

Philo: Selections, edited by Hans Lewy, 1901-1945.
Saadya Gaon: Book of doctrines and beliefs, edited by Alexander Altmann, 1906-
Jehuda Halevi: Kuzari, edited by Isaak Heinemann, 1876-1957.