The complete works of Sri Aurobindo : letters on yoga-I : foundations of the integral yoga, Vol.28 /
Sri Aurobindo
- Pondicherry : Aurobindo Ashram, 2012.
- 590p. ; 24cm.
This collection includes volume 1-36. (No of lack volumes 5,17,23 and 27). 125th birth anniversary of Sri Aurobindo.