Yogi Ramacharaka

Hatha Yoga

Pranayama

The Spirit of the Upanishads

The Hindu-Yogi Science of Breath

The Bhagavad Gita

Le Christianisme Mystique: Les enseignements intérieurs du Maître

Pranayama: The Yoga Science of Breathing

Science of Breath: A Complete Manual of the Oriental Breathing Philosophy of Physical, Mental, Psychic and Spiritual Development

Cristianismo Místico: Las Enseñanzas del Maestro

The Yoga Science of Breath

The Raja Yoga: A Series of Lessons

The Yoga of Wisdom: Lessons in Gnani Yoga