RT Book
T1 Letters on Yoga: 1, Foundations of the integral yoga
T2 Aurobindo 1872-1950, The complete works.
JF The complete works.
A1 Aurobindo 1872-1950
LA English
PP Pondicherry
PB Sri Aurobindo Ashram Publ. Dept.
YR 2012
UL https://ixtheo.de/Record/1442298677