Namaste, Some mantras of Dattatreya along with japa vidhis. ............... https://www.vasudevniwas.org/Books/Free/Mantravidhanam.pdf ........... These are compiled by Shri. Vasudevananda Saraswathi Maharaj (Tembe Maharaj) who himself was a great dattopasaka and wrote Guru Charitra in Sanskrit. rgs, sriram