Gupta, J. K. (1983). Sri Aurobindo's philosophy and yoga: Some aspects. Sahityasree.
Citazione stile Chigago Style (17a edizione)Gupta, Jibendra Kumar. Sri Aurobindo's Philosophy and Yoga: Some Aspects. Calcutta: Sahityasree, 1983.
Citatione MLA (8a ed.)Gupta, Jibendra Kumar. Sri Aurobindo's Philosophy and Yoga: Some Aspects. Sahityasree, 1983.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.