P PrMan: The Peshitta versions of the Prayer of Manasseh as prepared for the Leiden Peshitta Project edition iv/vi. For a comparative study of the two quite different texts see now A. Gutman and W. Van Peursen, The Two Syriac Versions of the Prayer of Manasseh (Gorgias Press, 2011).
The CPA version of this Prayer is a part of the Horologion at file 55430 pages 294ff.
P PrMan 9a1: Peshitta Prayer of Manasseh, ms 9a1