🇮🇳📖 Purl,Baij Nath India in the time oi Patanjali / By Baij Nath Purl. - Bombay : Bharatiya Vidya Bhavan, pref. 1957. - XVII, 260, 26 p. : 6 l.ill., 1 l. map. - Библиогр. в конце кн.