Feys, J. (1977). Sri Aurobindo: Yoga, religion, mysticism. Śri L. D. Swamikannu Pillai Endowment Lectures.
Chicago Style (17th ed.) CitationFeys, Jan. "Sri Aurobindo: Yoga, Religion, Mysticism." Śri L. D. Swamikannu Pillai Endowment Lectures 1977.
MLA (8th ed.) CitationFeys, Jan. "Sri Aurobindo: Yoga, Religion, Mysticism." Śri L. D. Swamikannu Pillai Endowment Lectures, 1977.
Warning: These citations may not always be 100% accurate.