About Sri Vasudevananda Saraswati Swamy
Swamy has authored around 19 books like Dwisahastri Gurucharitra (1889), Datta Puran (1892), Datta Mahatmya (1901), Saptashati Gurucharitra Saar (1904) and many more. Source: Wikipedia
Read in Sri Guru Charitra and Sri Dattavatara Mahathmayam Books