swami Satyananda Saraswati. (2013). Four Chapters on Freedom (1st.). Bihar School of Yoga.
Cita Chicago Style (17a ed.)swami Satyananda Saraswati. Four Chapters on Freedom. 1st. New Delhi: Bihar School of Yoga, 2013.
Cita MLA (9a ed.)swami Satyananda Saraswati. Four Chapters on Freedom. 1st. Bihar School of Yoga, 2013.
Precaución: Estas citas no son 100% exactas.