The wisdom of truth :
12 essays by the holy Kabbalist Rav Yehuda Ashlag /
edited by Michael Berg.

APA Citation

Ashlag, Y., Berg, M. (2008). The wisdom of truth: 12 essays by the holy Kabbalist Rav Yehuda Ashlag. New York: Kabbalah Pub..

MLA Citation

Ashlag, Yehudah, and Michael Berg. The Wisdom of Truth: 12 Essays by the Holy Kabbalist Rav Yehuda Ashlag. New York: Kabbalah Pub., 2008.

Warning: These citations may not always be complete (especially for serials).