Raja Yoga /
Yesudian, Selvarajan.
Haich, Elisabeth.
Robertson, John P.(James Porter),1913-
London Allen & Unwin
1970
This translation originally published as 'Yoga uniting East and West'. London: Allen & Unwin, 1956. Originally published as 'Yoga in den zwei Welten'. Thielle: Fankhauser, 1951
Yoga.